List of Ben 10 characters

This is a list of characters in the universe of Cartoon Network's Ben 10 franchise.^[1][2]

Main characters

Ben Tennyson

Main article: Ben Tennyson

Voiced by:

• Tara Strong - Ben 10 (4 and 10 years old), Ben 10: Ultimate Alien (10 years old in "Forge Of Creation"), Ben 10: Omniverse (5, 10, and 11 years old), and Ben 10 (2016) (10 years old and toddler)
• Yuri Lowenthal - Ben 10: Alien Force, Ben 10: Ultimate Alien, Ben 10: Omniverse (15 and 16 years old) and Ben 10 (2016) (15, 16 years old and elderly)

Portrayed by:

• Graham Phillips - Ben 10: Race Against Time
• Ryan Kelley - Ben 10: Alien Swarm

Benjamin Kirby Tennyson, also known as Ben 10, is the main protagonist of the franchise. At the start of Ben 10, he is a 10-year-old boy^{[note 1]} from Bellwood who, during his summer vacation, discovers the Omnitrix, a device that attaches to his wrist and allows him to transform into various aliens. He uses these powers to fight evil while fleeing from the alien warlord Vilgax, who is pursuing him to retrieve the Omnitrix.

He is introduced as self-centered and cocky, initially only helping people for the thrill of being a hero, leading people to doubt if he has what it takes to be a hero and is worthy of wielding the Omnitrix's power. However, Ben matures over the course of the series, becoming a capable leader in Alien Force due to Max's disappearance and the threat of the Highbreed invasion. Despite his immaturity, he is motivated by the desire to help and protect people, especially his loved ones. Though others often consider him to be stupid, Ben proves to be resourceful when needed, such as adapting when the Omnitrix does not provide him with the form he intended.

At some point between the original series and Alien Force, Ben stopped using the Omnitrix and returned to normal life. However, after he learns that Max has mysteriously disappeared, he takes up the Omnitrix again to find Max. After defeating the Highbreed, Ben gains fame and is celebrated as a hero, causing him to eventually return to his immature personality. He also loses Azmuth's trust after unsuccessfully attempting to hack the Omnitrix to unlock its full potential. He also discovers that he, Gwen, his father Carl, and his uncle Frank have heritage from the alien Anodites, though it is a dormant gene and he does not have the same potential as Gwen. However, “Ben 10,000 Returns” shows that he can utilize magic to some degree, as he produces an energy shield to block Eon's aging ray.

In the finale of Alien Force, Ben loses the Omnitrix to Vilgax and is later forced to self-destruct it to prevent him from having it. He then takes the Ultimatrix, a redone version of the Omnitrix, from Albedo, which has the same abilities as the Omnitrix, but can also turn his aliens into “Ultimate” forms. In Ultimate Alien, Ben's secret identity is revealed to the public.

In Omniverse, the Plumbers assign Ben a new partner, Rook Blonko, as Gwen has left for college with Kevin, and he learns of Undertown, where aliens live under Bellwood. At the end of the series, after witnessing the birth of a universe, Ben decides to take a galactic trip with Rook, Kevin, and Gwen.

Gwen Tennyson

Main article: Gwen Tennyson

Voiced by:

• Meagan Smith - Ben 10 (10 years old)
• Ashley Johnson - Ben 10: Alien Force, Ben 10: Ultimate Alien, and Ben 10: Omniverse (11, 15, and 16 years old)
• Montserrat Hernandez - Ben 10 (Reboot; 10 years old and toddler)

Portrayed by:

• Haley Ramm - Ben 10: Race Against Time
• Galadriel Stineman - Ben 10: Alien Swarm

Gwendolyn "Gwen" Tennyson is Ben's paternal cousin. She is 10 years old in Ben 10, 15 in Alien Force, and 16 in Ultimate Alien and Omniverse.

In the original series, Gwen has a love-hate relationship with Ben. Before discovering her dormant magic powers, she aids Ben using her innate intelligence; she is also a talented martial artist with black belts in Karate and Taekwondo and training in Jujitsu, as well as a highly skilled gymnast. She is a model student, and in Omniverse is shown leaving for an Ivy League College.

Her most notable skill is her strong magical abilities. She possesses what Charmcaster calls a "magical aura" and can use various magic artifacts, charms, talismans, spell books, and spells, as well as manipulate pink/magenta energy to create energy blasts and various constructs, such as weapons. On two occasions, Gwen has used the Charms of Bezel to become the superheroine "Lucky Girl". At first, her magical ability is drawn from the luck-granting Charm of Bezel, which causes any action she takes to result in a beneficial chain reaction. She later revives this identity after obtaining the Keystone of Bezel, which strengthens her agility, endurance, and natural abilities, to superhuman levels, but retires the identity after the Charms of Bezel are destroyed. Gwen later learns that her powers are not magic in origin, but rather alien, as her paternal grandmother, Verona, is an Anodite who can manipulate mana, the essence of magic and life. Gwen can take on an Anodite energy form when she is angered or stressed. In Ledger Domain, her innate magical and Anodite powers are further magnified.

In Omniverse, she becomes a supporting character, having decided to go to Ivy League College with Kevin; however, she frequently visits Plumber Headquarters and uses her magic to help fight evil. She has also gained the power to transform between her human and Anodite forms more freely.

Max Tennyson

Voiced by:

• Paul Eiding - Ben 10, Ben 10: Alien Force, Ben 10: Ultimate Alien, and Ben 10: Omniverse (54, 59-60, 60-61, 64-65, and 65–66 years old)
• Adam Wylie - Ben 10 (10 years old in "Don't Drink the Water")
• Jason Marsden - Ben 10: Ultimate Alien (17 years old in "Moonstruck")
• David Kaye - Ben 10 (2016)

Portrayed by:

• Lee Majors - Ben 10: Race Against Time
• Barry Corbin - Ben 10: Alien Swarm

Maxwell "Max" Tennyson is Ben and Gwen's paternal grandfather. He is 60 years old in the original series, 65 in Alien Force, and 66 in Ultimate Alien and Omniverse.^{[note 2]} Despite his age, he has been shown to be a capable fighter, and after Ben finds the Omnitrix, supports him any way he can. Max was once a candidate for the Apollo 11 mission and one of the leaders, or "Magisters", of the Plumber organization, but Ben and Gwen did not know of this at first, believing him to have been a literal plumber. Prior to Ben gaining the Omnitrix, he tried to keep the Plumbers a secret from his family to protect them, which fails when the Omnitrix and Vilgax come to Earth. Max drives a recreational vehicle nicknamed the "Rust Bucket", which conceals various Plumber weapons and technology.

Max is an old friend of the alien Xylene, who has flight, telepathy, and telekinesis abilities. She intended to send the Omnitrix to him, but Ben found it instead. He also had a close romantic relationship with the Anodite alien Verdona; together, they had two sons; Ben's father Carl and Gwen and Ken's father Frank.

In Alien Force, Max plays a part in exposing the Highbreed conspiracy. He destroys a Xenocyte hatchery by detonating a Null Void Projector and is presumed dead in the aftermath. However, he was instead sent to the Null Void where, calling himself "The Wrench", he fought against Doctor Animo. Following the Highbreed's defeat, Max trains a new group of Plumbers while helping to inform Ben and the team of alien threats.

Kevin Levin

Voiced by:

• Michael Reisz - Ben 10 (11 years old)
• Charlie Schlatter - Ben 10 (11 years old in later episodes)
• Greg Cipes - Ben 10: Alien Force, Ben 10: Ultimate Alien, Ben 10: Omniverse, and Ben 10 (2016) (11, 12, 16, and 17 years old)

Portrayed by:

• Nathan Keyes - Ben 10: Alien Swarm

Kevin Ethan Levin is an Osmosian who first appears in the original series as an 11-year-old^{[note 3]} boy and one of Ben's enemies. However, he later reforms and becomes Ben's best friend and Gwen's love interest. Believing his stepfather Harvey Hackett convinced his mother to abandon him after he accidentally destroyed his family's house when his powers first manifested, Kevin ran away and ended up living in the subways of New York City, where he meets Ben and uses him to siphon the Omnitrix's energies to take revenge on those who demonized him. However, in the process he is infused with the DNA of Ben's current aliens and becomes an unstable chimeric hybrid of them.

Later in the series, Kevin ends up in the Null Void, where he manages to return to normal and master his abilities under the guidance of a fellow inmate. He later escapes and is found by the Rooters, who train him and use his power to turn themselves and the Plumbers Kids into alien-hybrids to further the organization's plan to assassinate Ben. This attempt later ends in failure, with Kevin's memories altered to have no recollection of the Rooters, making him believe his father was an alien involved with the intergalactic black market. Despite lacking formal education, Kevin has extensive knowledge of alien life and paraphernalia. While teaming up with Ben and Gwen during the Highbreed invasion, his false memories of his father influence him to reconcile with Ben and, over time, become romantically involved with Gwen. He has a muscle car, based on a 1970's Dodge Challenger equipped with Plumber and other alien technology.

Despite turning over a new leaf, Kevin still occasionally acts out of self interest and has trouble forgiving others. During Vilgax's challenge to Ben, Kevin accidentally mutates into a form composed of steel, tadenite, concrete, and wood, using one of the DNAliens' I.D. masks to appear human. During this second mutation, he can turn his limbs into makeshift weapons at will. After the Omnitrix is destroyed, Kevin reverts to normal but retains his ability to shapeshift.

In Ultimate Alien, Kevin absorbs the Ultimatrix's energy to stop Ultimate Aggregor, causing him to lose his mental stability and become a chimera of Ben's most recent aliens, despite still retaining some of his humanity. He then goes on a revenge spree against those who wronged him. In "Absolute Power", Kevin absorbs the abilities of Alan Albright, Manny, Helen, Pierce, and Doctor Viktor, whom he places in a comatose state. During a last stand in Los Soledad, Ben defeats Kevin and restores him to human form.

In Omniverse, Kevin leaves Bellwood when Gwen moves to Ivy League College and eventually returns as a recurring character while befriending Rook. In "Showdown", he adopts Zed, who was abandoned by Khyber and becomes his pet. In "The Rooters of All Evil", Kevin regains his memories of the Rooters and manages to escape them while seeking to restore the memories of everyone involved and confront Proctor Servantis. However, Ben's interference forces Kevin to wait to catch Servantis off guard and break his psionic hold on Alan, Manny, and Helen. By this time, Kevin has learned how to maintain his sense of self while absorbing Omnitrix energy.

In the reboot, Kevin is a bully of Ben who develops a knock-off of the Omnitrix called the Antitrix after gaining the Omnitrix blueprints in a dream. He first appears in the third season and is recruited by the Forever Knights, who exploit his feelings for Gwen.

Antitrix aliens

• Wreckingbolt - Cannonbolt, first seen in "This One Goes to 11."
• Quad Smack - Four Arms, first used in "Which Watch".
• Rush - XLR8, first seen in "Introducing Kevin 11."
• Skunkmoth - Stinkfly, first seen in "Introducing Kevin 11."
• Crystal Fist - Diamondhead, first seen in "Franken-Fight."
• Bootleg - Upgrade, first seen in "Franken-Fight".
• Hot Shot - Heatblast, first seen in "Buggy Out."
• Dark Matter - Grey Matter, first seen in "King of the Castle".
• Thornblade - Wildvine, first seen in "Buggy Out."
• Undertow - Overflow, first seen in "Buggy Out."
• Bashmouth - A wolf-like alien that can generate metal to increase offense and defense, first seen in "Introducing Kevin 11."

Rook Blonko

Voiced by:

• Bumper Robinson - Ben 10: Omniverse

Rook Blonko is a Revonnahgander from the planet Revonnah. He is a Plumber who Max assigns to Ben after Gwen and Kevin leave. According to Revonnahgander tradition, Blonko is his real name because, like Eastern customs, they have their last name first.

He is a top Plumber Academy graduate and skilled fighter who possesses many Plumber weapons and technology, such as the Proto-tool, a shapeshifting weapon that can transform into various tools. Despite this, he lacks actual experience and treats Ben as a superior rather than a friend or partner. Rook has limited knowledge of Earth's culture and does not understand sarcasm, in contrast with Ben's wise-cracking personality.

Towards the end of the series, Rook's performance as a Plumber results in his promotion to the rank of Magister. In the future seen in "The End of an Era," he is to assume the office of Magistratus, which was previously held by Max. By this point, Rook understands metaphors well and uses his original lack of understanding them as a joke between him and Ben.

Glitch

Voiced by:

• Tara Strong - Ben 10 (2016)

Glitch is a hybrid created as the result of Ben using Upgrade to enhance the Omnitrix in "Omni-Tricked", destroying the Galvan Mechamorph strain as part of it fuses with a sample of his human DNA. Glitch has Ben's playful nature and stubbornness, but is far more patient and serious; he also possesses knowledge on the Omnitrix's functions. After "Innervasion", Glitch transfers into the Rustbucket and enhances it while being welcomed as a new addition to the family.

Secondary characters

Plumbers

The Plumbers are a special police force that operate in the universe. While some work on Earth, most work in different parts of the universe.

Among the known Plumbers are:

• Magister Labrid, voiced by Jeff Bennett – Ben 10: Alien Force and Ben 10: Ultimate Alien (flashback)
• Magister Prior Gilhil, voiced by J. K. Simmons - Ben 10: Alien Force and Ben 10: Ultimate Alien
• Magister Patelliday, voiced by Rob Paulsen - Ben 10: Ultimate Alien and Ben 10: Omniverse

Plumber's Helpers

This group is composed of the children of Plumbers, most of whom are superpowered alien-human hybrids.

Cooper

Voiced by:

• Cathy Cavadini – Ben 10
• Corey Padnos – Ben 10: Alien Force
• Chris Pratt – Ben 10: Ultimate Alien
• Eric Bauza – Ben 10: Omniverse

Alan Albright

Voiced by:

• Zeno Robinson - Ben 10: Alien Force and Ben 10: Ultimate Alien
• Bumper Robinson - Ben 10: Omniverse

Helen Wheels

Voiced by:

• Juliet Landau - Ben 10: Alien Force and Ben 10: Omniverse

Manny Armstrong

Voiced by:

• Khary Payton – Ben 10: Alien Force and Ben 10: Omniverse

Pierce Wheels

Voiced by:

• Adam Wylie – Ben 10: Alien Force and Ben 10: Ultimate Alien

Lucy Mann

Voiced by:

• Tara Strong – Ben 10 and Ben 10: Omniverse

Julie Yamamoto

Voiced by:

• Vyvan Pham - Ben 10: Alien Force, Ben 10: Ultimate Alien and Ben 10: Omniverse

Kai Green

Voiced by:

• Bettina Bush - Ben 10 and Ben 10: Omniverse

Azmuth

Voiced by:

• Robert David Hall – Ben 10: Secret of the Omnitrix and Ben 10: Destroy All Aliens
• Jeff Bennett – Ben 10: Alien Force and Ben 10: Ultimate Alien
• René Auberjonois – Ben 10: Omniverse
• David Kaye – Ben 10 Versus The Universe: The Movie

Azmuth's Father

Voiced by:

• Steve Blum - Ben 10: Destroy All Aliens (in Mechamorph Armor)
• Troy Baker - Ben 10: Destroy All Aliens (Galvan form)

Ship

Voiced by:

• Vyvan Pham - Ben 10: Alien Force, Ben 10: Ultimate Alien and Ben 10: Omniverse

Paradox

Voiced by:

• David McCallum - Ben 10: Alien Force, Ben 10: Ultimate Alien, and Ben 10: Omniverse

Jimmy Jones

Voiced by:

• Scott Menville - Ben 10: Ultimate Alien, Ben 10: Omniverse

Aggregor's Prisoners

They are aliens from the Andromeda Galaxy.

Bivalvan

Voiced by:

• Dee Bradley Baker - Ben 10: Ultimate Alien

Galapagus

Voiced by:

• John DiMaggio - Ben 10: Ultimate Alien

P'andor

Voiced by:

• Dee Bradley Baker - Ben 10: Ultimate Alien

Andreas

Voiced by:

• Dee Bradley Baker – Ben 10: Ultimate Alien

Ra'ad

Voiced by:

• Dee Bradley Baker – Ben 10: Ultimate Alien

Sir George

Voiced by:

• Peter Renaday - Ben 10: Ultimate Alien

Alternate versions of Ben

Ben 23

Voiced by:

• Tara Strong - Ben 10: Omniverse

Ben 23's Omnitrix Aliens

• Freezelizard - Arcticguana - Voiced by: Eric Bauza
• Rollaway - Cannonbolt - Voiced by: David Kaye
• Electricyeti - Shocksquatch - Voiced by: David Kaye
• Build-A-Guy - Bloxx
• Eye Guy - Eye Guy - Voiced by: Paul Eiding
• Big Bug - Stinkfly - Voiced by: Dee Bradley Baker
• Vomit Man - Upchuck - Voiced by: Eric Bauza
• Speedyquick - XLR8 - Voiced by: Yuri Lowenthal
• Toolboxx - Armodrillo - Voiced by: John DiMaggio
• Nighty Knight - Pesky Dust - Voiced by: Tara Strong
• Mr. Monkey - Spidermonkey - Voiced by: Dee Bradley Baker
• Techno-Bubble - Upgrade - Voiced by: Tara Strong
• Dino-Mighty - Humungousaur - Voiced by: John DiMaggio
• Freezeghost - Big Chill - Voiced by: Dee Bradley Baker
• Handy Man - Four Arms - Voiced by: John DiMaggio
• Lightning Volt - Frankenstrike - Voiced by: David Kaye
• Brainfrog - Grey Matter - Voiced by: Eric Bauza

Ben 10,000

Voiced by:

• Fred Tatasciore - Ben 10 and Ben 10 (2016)
• Sean Donnellan - Ben 10: Ultimate Alien
• Judd Nelson - Ben 10: Omniverse

Ultimate Ben

Voiced by:

• Sean Donnellan - Ben 10: Ultimate Alien

Kenny Tennyson/Chrono Spanner

Voiced by:

• Tara Strong - Ben 10
• Scott Menville - Ben 10: Omniverse

Kai Tennyson (Future)

Voiced by:

• Bettina Bush - Ben 10: Omniverse

Gwen 10

Voiced by:

• Meagan Smith - Ben 10
• Ashley Johnson - Ben 10: Omniverse

Other characters

Big Ed

Portrayed by:

• Patrick Cox - Ben 10: Alien Swarm

Cash and JT

Cash is voiced by:

• Dee Bradley Baker – Ben 10
• Matt Levin – Ben 10: Alien Force and Ben 10: Ultimate Alien
• Roger Craig Smith – Ben 10 (Reboot)

Portrayed by:

• Tyler Patrick Jones – Ben 10: Race Against Time

JT is voiced by:

• Adam Wylie – Ben 10
• Yuri Lowenthal – Ben 10: Alien Force (In "Ben 10 Returns" Pt. 1)
• Scott Menville – Ben 10: Alien Force (In "The Gauntlet") and Ben 10: Ultimate Alien
• Max Mittelman – Ben 10 (Reboot)

Portrayed by:

• Tyler Foden – Ben 10: Race Against Time

Lt. Steel

Voiced by:

• Michael Gough - Ben 10
• Yuri Lowenthal - Ben 10: Omniverse

Tetrax Shard

Voiced by:

• Dave Fennoy – Ben 10 and Ben 10: Alien Force
• Todd Haberkorn – Ben 10 (Reboot)

Xylene

Voiced by:

• Grey DeLisle - Ben 10

Galactic Enforcers

The Galactic Enforcers are a group of alien "super heroes" Ben first encounters in their titular episode. They temporarily recruit him because he has the Omnitrix, but Ben resigns after realizing that he would be better without them.

Ultimos

Voiced by:

• Tom Kane – Ben 10
• Jeff Bennett – Ben 10: Alien Force

Synaptak

Voiced by:

• Greg Ellis – Ben 10

Tini

Voiced by:

• Vanessa Marshall – Ben 10
• Juliet Landau – Ben 10: Alien Force

Myaxx

Voiced by:

• Vanessa Marshall – Ben 10: Secret of the Omnitrix
• Vyvan Pham – Ben 10: Alien Force

Carl & Sandra Tennyson

Carl is portrayed/voiced by:

• Dee Bradley Baker - Ben 10, Ben 10: Destroy All Aliens
• Don McManus - Ben 10: Alien Force, Ben 10: Race Against Time
• Yuri Lowenthal - Ben 10: Ultimate Alien

Sandra is portrayed/voiced by:

• Tara Strong - Ben 10, Ben 10: Destroy All Aliens
• Vyvan Pham - Ben 10: Alien Force (In "Ben 10 Returns Pt. 1" only)
• Beth Littleford - Ben 10: Alien Force (In "Grounded") and Ben 10: Ultimate Alien, Ben 10: Omniverse, Ben 10: Race Against Time

Baz-El

Voiced by:

• Rob Paulsen - Ben 10: Alien Force and Ben 10: Ultimate Alien

Verdona Tennyson

Voiced by:

• Barbara Bain - Ben 10: Alien Force (Elderly human form)
• Juliet Landau - Ben 10: Alien Force and Ben 10: Ultimate Alien (Anodite form and teenage human form in "Moonstruck")

Frank Tennyson

Voiced by:

• George Newbern - Ben 10: Alien Force

Natalie Tennyson

Voiced by:

• Juliet Landau - Ben 10: Alien Force and Ben 10: Ultimate Alien

Reinrassig III

Voiced by:

• Richard McGonagle – Ben 10: Alien Force

Elena Validus

Portrayed by:

• Alyssa Diaz - Ben 10: Alien Swarm

Voiced by:

• Tia Texada - Ben 10: Ultimate Alien and Ben 10: Omniverse

Victor Validus

Portrayed by:

• Herbert Siguenza - Ben 10: Alien Swarm

Voiced by:

• Brian George - Ben 10: Ultimate Alien

Colonel Rozum

Voiced by:

• John DiMaggio - Ben 10: Ultimate Alien

Eunice

Voiced by:

• Molly Quinn – Ben 10: Ultimate Alien

Winston

Voiced by:

• Patrick Cavanaugh – Ben 10: Ultimate Alien

Ignacius Baumann

Voiced by:

• Richard Doyle - Ben 10: Ultimate Alien
• Corey Burton - Ben 10: Omniverse

Zed

Voiced by:

• Paul Eiding - Ben 10: Omniverse

Pakmar

Voiced by:

• Tara Strong - Ben 10: Omniverse

Professor Blarney T. Hokestar

Voiced by:

• Charlie Adler - Ben 10: Omniverse

Pax

Voiced by:

• Eric Bauza - Ben 10: Omniverse

Kraaho

The Kraaho are hot-blooded tungsten-based aliens that thrive on warm temperatures.

Seebik

Voiced by:

• Corey Burton - Ben 10: Omniverse

Ester

Voiced by:

• Tara Platt - Ben 10: Omniverse

Hobble

Voiced by:

• Steven Blum - Ben 10: Omniverse

Rad Dudesman

Voiced by:

• Carlos Alazraqui - Ben 10: Omniverse

Pyxi

Voiced by:

• Carlos Alazraqui - Ben 10: Omniverse

Scout

Voiced by:

• Carlos Alazraqui - Ben 10: Omniverse

Skurd

Voiced by:

• David Kaye - Ben 10: Omniverse

Todd

Voiced by:

• Max Mittelman - Ben 10 (Reboot)

Sally

Voiced by:

• Tara Strong - Ben 10 (Reboot)

Shady Looking Dude

Voiced by:

• Josh Keaton - Ben 10 (Reboot)

Steve

Voiced by:

• David Kaye - Ben 10 (Reboot)

Bill

Voiced by:

• Roger Craig Smith - Ben 10 (Reboot)

Glamour Man

Voiced by:

• John DiMaggio - Ben 10 (Reboot)

Starshine

Voiced by:

• Tara Strong - Ben 10 (Reboot)

Omnitrix/Ultimatrix Aliens

Heatblast

Voiced by (Ben):

• Steve Blum - Ben 10
• David Franklin - Ben 10: Race Against Time
• Dee Bradley Baker - Ben 10: Ultimate Alien
• David Kaye - Ben 10: Omniverse
• Daryl Sabara - Ben 10 (2016)

Voiced by (others):

• Michael Reisz - Ben 10 (as Kevin in "Kevin 11")
• Charlie Schlatter - Ben 10 (as Kevin in "Framed")
• Grey DeLisle - Ben 10 (as Gwen in "Gwen 10")
• Michael Emerson - Ben 10 / Generator Rex: Heroes United (as Alpha)

Hot Shot

Voiced by:

• Greg Cipes - Ben 10 (2016)

Wildmutt

Voiced by:

• Dee Bradley Baker - Ben 10, Ben 10: Ultimate Alien, Ben 10: Omniverse
• Tara Strong - Ben 10 (Dream in "Ghostfreaked Out")

Ultimate Wildmutt

Voiced by:

• Dee Bradley Baker - Ben 10: Ultimate Alien

Diamondhead

Voiced by (as Ben):

• Jim Ward - Ben 10
• Daran Norris - Ben 10: Race Against Time
• Dee Bradley Baker - Ben 10: Alien Force, Ben 10: Ultimate Alien
• Eric Bauza - Ben 10: Omniverse
• Roger Craig Smith - Ben 10 (2016)

Voiced by (as Gwen):

• Vanessa Marshall - Ben 10 (in "Gwen 10")
• Ashley Johnson - Ben 10: Ultimate Alien (in "Inspector 13")
• Tara Strong - Ben 10: Omniverse (in "And Then There Was Ben")

Crystalfist

Voiced by:

• Greg Cipes - Ben 10 (2016)

XLR8

Voiced by (as Ben):

• Jim Ward - Ben 10
• Yuri Lowenthal - Ben 10: Omniverse
• Josh Keaton - Ben 10 (2016)

Voiced by (as Gwen):

• Ashley Johnson - Ben 10: Omniverse (in "And Then There Was Ben")

Rush

Voiced by:

• Greg Cipes - Ben 10 (2016)

Grey Matter

Voiced by (as Ben):

• Richard Steven Horvitz - Ben 10
• Carlos Alazraqui - Ben 10: Race Against Time
• Eric Bauza - Ben 10: Omniverse
• Todd Haberkorn - Ben 10 (2016)

Voiced by (as Gwen):

• Kari Wahlgren - Ben 10 (in "Gwen 10")

Dark Matter

Voiced by:

• Greg Cipes - Ben 10 (2016)

Four Arms

Voiced by (as Ben):

• Richard McGonagle - Ben 10 and Ben 10: Galactic Racing
• Steven Blum - Ben 10 (As 4-year-old Ben in "Don't Drink the Water")
• Dee Bradley Baker - Ben 10: Ultimate Alien
• John DiMaggio - Ben 10: Ultimate Alien (As 10-year-old Ben in "The Forge of Creation"), Ben 10: Omniverse, Ben 10 (2016)

Voiced by (as others):

• Michael Reisz - Ben 10 (as Kevin in "Kevin 11")
• Charlie Schlatter - Ben 10 (as Kevin in "Framed")
• Vanessa Marshall - Ben 10 (as Gwen in "Gwen 10")
• Michael Emerson - Ben 10 / Generator Rex: Heroes United (as Alpha)
• Montserrat Hernandez - Ben 10 (2016) (as Gwen in Ben's body in "Freaky Gwen Ben")
• Gunnar Sizemore - Ben 10 (2016) (as Billy Billions in "Ben Again and Again")

Quad Smack

Voiced By:

• Greg Cipes - Ben 10 (Reboot)

Stinkfly

Voiced by (as Ben):

• Dee Bradley Baker - Ben 10, Ben 10: Ultimate Alien, Ben 10: Omniverse
• Greg Cipes - Ben 10 (2016)

Voiced by (as others):

• Charlie Schlatter - Ben 10 (as Kevin in "Framed")
• Montserrat Hernandez - Ben 10 (2016) (as Gwen in "Innervasion Part 5: High Override")

Skunkmoth

Voiced by:

• Greg Cipes - Ben 10 (2016)

Ripjaws

Voiced by (as Ben):

• Fred Tatasciore - Ben 10
• Eric Bauza - Ben 10: Omniverse

Voiced by (as Gwen):

• Monstserrat Hernandez - Ben 10 (2016) (in "Alien X-Tinction")

Upgrade

Voiced by (as Ben):

• Tara Strong - Ben 10, Ben 10: Omniverse (10 and 11 year old)
• Yuri Lowenthal - Ben 10 / Generator Rex: Heroes United, Ben 10: Omniverse (16 year old)
• David Sobolov - Ben 10 (2016)

Voiced by (as others):

• Charlie Schlatter - Ben 10 (As Kevin in "Framed")
• Paul Eiding - Ben 10 (As Max in "Gwen 10")
• Tara Strong - Ben 10 (2016) (As Gwen in Ben's body in "Freaky Gwen Ben")

Bootleg

Voiced by:

• Greg Cipes - Ben 10 (2016)

Ghostfreak

Voiced by:

• Steve Blum - Ben 10, Ben 10: Omniverse
• Jeff Bennett - Ben 10: Alien Force, Ben 10: Ultimate Alien

Cannonbolt

Voiced by (as Ben):

• Fred Tatasciore - Ben 10
• Dee Bradley Baker - Ben 10: Alien Force, Ben 10: Ultimate Alien
• David Kaye - Ben 10: Omniverse
• Travis Willingham - Ben 10 (2016)

Voiced by (as others):

• Vanessa Marshall - Ben 10 (as Gwen in Ben's body in "A Change of Face")
• David Kaye - Ben 10 (2016) (as Max in "Innervasion Part 5: High Override")

Wreckingbolt

Voiced by:

• Greg Cipes - Ben 10 (2016)

Wildvine

Voiced by (as Ben):

• Jim Ward - Ben 10
• Dee Bradley Baker - Ben 10: Omniverse
• David Hornsby - Ben 10 (2016)

Voiced by (as Gwen):

• Ashley Johnson - Ben 10: Omniverse (in "And Then There Were None" and "And Then There Was Ben")

Thornblade

Voiced by:

• Greg Cipes - Ben 10 (2016)

Spitter

Voiced by:

• Dee Bradley Baker - Ben 10

Buzzshock

Voiced by:

• Tara Strong - Ben 10 and Ben 10 (2016)
• Eric Bauza - Ben 10: Omniverse

Arctiguana

Voiced by:

• Tom Kane - Ben 10
• Eric Bauza - Ben 10: Omniverse

Ultimate Arctiguana

Voiced by:

• Eric Bauza - Ben 10: Omniverse

Blitzwolfer

Voiced by:

• Tara Strong - Ben 10
• Kevin Michael Richardson - Ben 10: Omniverse

Snare-oh

Voiced by:

• Richard Green - Ben 10
• Kevin Michael Richardson - Ben 10: Omniverse

Frankenstrike

Voiced by:

• Michael Dorn - Ben 10
• David Kaye - Ben 10: Omniverse

Upchuck

Voiced by (as Ben):

• Dave Wittenberg - Ben 10
• Dee Bradley Baker - Ben 10: Alien Force, Ben 10: Ultimate Alien
• Eric Bauza - Ben 10: Omniverse

Voiced by (others):

• Ashley Johnson - Ben 10: Ultimate Alien (in "Inspector 13")

Ditto

Voiced by:

• Rob Paulsen - Ben 10, Ben 10: Omniverse

Eye Guy

Voiced by:

• Dee Bradley Baker - Ben 10
• Paul Eiding - Ben 10: Omniverse

Way Big

Voiced by:

• Fred Tatasciore - Ben 10: Secret Of The Omnitrix, Ben 10: Destroy All Aliens
• Dee Bradley Baker - Ben 10: Alien Force, Ben 10: Ultimate Alien
• Eric Bauza - Ben 10: Omniverse
• Roger Craig Smith - Ben 10 Versus The Universe: The Movie

Voiced by (others):

• Greg Cipes - Ben 10: Ultimate Alien (As Kevin in "Inspector 13")

Ultimate Way Big

Voiced by:

• Dee Bradley Baker - Ben 10: Ultimate Alien

Eon

Voiced by:

• Christien Anholt - Ben 10: Race Against Time

Introduced in Alien Force

Aliens introduced to the franchise in Alien Force.

Swampfire

Voiced by:

• Dee Bradley Baker - Ben 10: Alien Force, Ben 10: Ultimate Alien, Ben 10: Omniverse
• David Kaye - Ben 10: Omniverse 2

Ultimate Swampfire

Voiced by:

• Dee Bradley Baker - Ben 10: Alien Force, Ben 10: Ultimate Alien

Echo Echo

Voiced by:

• Dee Bradley Baker - Ben 10: Alien Force, Ben 10: Ultimate Alien, Ben 10: Omniverse

Ultimate Echo Echo

Voiced by:

• Dee Bradley Baker - Ben 10: Ultimate Alien, Ben 10: Omniverse

Humungousaur

Voiced by:

• Dee Bradley Baker - Ben 10: Alien Force, Ben 10: Ultimate Alien
• John DiMaggio - Ben 10: Omniverse
• David Kaye - Ben 10 (Reboot)

Voiced by (others):

• Jeff Bennett - Ben 10: Alien Force (as Azmuth in "Primus")
• Ashley Johnson - Ben 10: Ultimate Alien (as Gwen in "Inspector 13")
• Michael Emerson - Ben 10: Ultimate Alien (as Alpha in "Ben 10 / Generator Rex: Heroes United")

Ultimate Humungousaur

Voiced by:

• Dee Bradley Baker - Ben 10: Alien Force, Ben 10: Ultimate Alien
• John DiMaggio - Ben 10: Omniverse

Jetray

Voiced by (as Ben):

• Dee Bradley Baker - Ben 10: Alien Force, Ben 10: Ultimate Alien, and Ben 10 (reboot)

Voiced by (others):

• Greg Cipes - Ben 10: Ultimate Alien (as Kevin in "Inspector 13")

Big Chill

Voiced by:

• Dee Bradley Baker - Ben 10: Alien Force, Ben 10: Ultimate Alien, Ben 10: Omniverse, Ben 10 (Reboot)

Ultimate Big Chill

Voiced by:

• Dee Bradley Baker - Ben 10: Ultimate Alien

Chromastone

Voiced by:

• Dee Bradley Baker - Ben 10: Alien Force, Ben 10: Ultimate Alien, and Ben 10 (Reboot)
• Eric Bauza - Ben 10: Omniverse

Brainstorm

Voiced by:

• Dee Bradley Baker - Ben 10: Alien Force, Ben 10: Ultimate Alien
• Corey Burton - Ben 10: Omniverse

Spidermonkey

Voiced by:

• Dee Bradley Baker - Ben 10: Alien Force, Ben 10: Ultimate Alien, Ben 10: Omniverse, Ben 10 (2016)

Ultimate Spidermonkey

Voiced by:

• Dee Bradley Baker - Ben 10: Ultimate Alien
• Paul Eiding - Ben 10: Omniverse

Goop

Voiced by:

• Dee Bradley Baker - Ben 10: Alien Force, Ben 10: Ultimate Alien, Ben 10: Omniverse, Ben 10 Versus The Universe: The Movie

Voiced by (others):

• James Remar - Ben 10: Alien Force (As Vilgax in "Primus")

Alien X

Voiced by:

• Yuri Lowenthal - Ben 10: Alien Force, Ben 10: Ultimate Alien, Ben 10: Omniverse
• Fred Tatasciore - Ben 10 (2016)

Lodestar

Voiced by:

• Dee Bradley Baker - Ben 10: Alien Force, Ben 10: Ultimate Alien, Ben 10: Omniverse

Rath

Voiced by:

• John DiMaggio - Ben 10: Alien Force, Ben 10: Ultimate Alien, Ben 10: Omniverse
• Dee Bradley Baker - Ben 10 (Reboot)

Voiced by (others):

• Jeff Bennett - Ben 10: Alien Force (as Azmuth in "Primus")
• Ashley Johnson - Ben 10: Ultimate Alien (as Gwen in "Inspector 13")
• Dwight Schultz - Ben 10 (Reboot) (as Dr. Animo in "Animorphosis")

Ultimate Rath

Voiced by:

• John DiMaggio - Ben 10: Omniverse

Nanomech

Voiced by:

• Alex Winter - Ben 10: Alien Swarm
• Dee Bradley Baker - Ben 10: Ultimate Alien, Ben 10: Omniverse

Introduced in Ultimate Alien

Aliens introduced to the franchise in Ultimate Alien.

Water Hazard

Voiced by:

• Dee Bradley Baker - Ben 10: Ultimate Alien and Ben 10: Omniverse

Ampfibian

Voiced by:

• Yuri Lowenthal - Ben 10: Ultimate Alien (In "Fused"), Ben 10: Omniverse
• Dee Bradley Baker - Ben 10: Ultimate Alien (all other appearances), Ben 10 (Reboot)

Voiced by (Kevin):

• Greg Cipes - Ben 10: Ultimate Alien (as Kevin in "Inspector 13")

Armodrillo

Voiced by:

• Dee Bradley Baker - Ben 10: Ultimate Alien
• John DiMaggio - Ben 10: Omniverse

Terraspin

Voiced by:

• Dee Bradley Baker - Ben 10: Ultimate Alien
• Bumper Robinson - Ben 10: Omniverse

NRG

Voiced by:

• Dee Bradley Baker - Ben 10: Ultimate Alien, Ben 10: Omniverse

Fasttrack

Voiced by:

• Dee Bradley Baker - Ben 10: Ultimate Alien

Chamalien

Voiced by:

• Dee Bradley Baker - Ben 10: Ultimate Alien

Eatle

Voiced by:

• Dee Bradley Baker - Ben 10: Ultimate Alien
• Eric Bauza - Ben 10: Omniverse

Clockwork

Voiced by:

• Dee Bradley Baker - Ben 10: Ultimate Alien, Ben 10: Omniverse

• Ashley Johnson - Ben 10: Ultimate Alien (As Gwen in "Inspector 13")

Juryrigg

Voiced by:

• Dee Bradley Baker - Ben 10: Ultimate Alien
• Bumper Robinson - Ben 10: Omniverse

Shocksquatch

Voiced by:

• David Kaye - Ben 10 / Generator Rex: Heroes United, Ben 10: Omniverse

Introduced in Omniverse

Aliens introduced to the franchise in Omniverse.

Feedback

Voiced by:

• Yuri Lowenthal - Ben 10: Omniverse

Bloxx

Voiced by:

• Bumper Robinson - Ben 10: Omniverse
• David Kaye - Ben 10 (reboot)

Gravattack

Voiced by:

• David Kaye - Ben 10: Omniverse

Ultimate Gravattack

Voiced by:

• David Kaye - Ben 10: Omniverse

Crashhopper

Voiced by:

• Dee Bradley Baker - Ben 10: Omniverse

Ball Weevil

Voiced by:

• Bumper Robinson - Ben 10: Omniverse

Walkatrout

Voiced by:

• Yuri Lowenthal - Ben 10: Omniverse

Pesky Dust

Voiced by:

• Yuri Lowenthal - Ben 10: Omniverse (In "Outbreak")
• Tara Strong - Ben 10: Omniverse

Mole-Stache

Voiced by:

• Yuri Lowenthal - Ben 10: Omniverse (In "Outbreak")
• David Kaye - Ben 10: Omniverse (all other appearances)

The Worst

Voiced by:

• Yuri Lowenthal - Ben 10: Omniverse (In "Outbreak")
• Dee Bradley Baker - Ben 10: Omniverse (all other appearances)

Kickin Hawk

Voiced by:

• Yuri Lowenthal - Ben 10: Omniverse

Toepick

Voiced by:

• Eric Bauza - Ben 10: Omniverse

Astrodactyl

Voiced by:

• Dee Bradley Baker - Ben 10: Omniverse

Bullfrag

Voiced by:

• John DiMaggio - Ben 10: Omniverse

Atomix

Voiced by:

• John DiMaggio - Ben 10: Omniverse

Gutrot

Voiced by:

• Rob Paulsen - Ben 10: Omniverse

Whampire

Voiced by:

• John DiMaggio - Ben 10: Omniverse

Introduced in Ben 10 (2016)

Aliens introduced to the franchise in the 2016 series, which serves as a reboot. Returning aliens from the previous continuity include Heatblast, Diamondhead, XLR8, Grey Matter, Four Arms, Stinkfly, Upgrade, Cannonbolt, Wildvine, Humungousaur, Rath, Wildmutt, Ripjaws, Eye Guy, and Jetray.

Overflow

Voiced by:

• Max Mittelman - Ben 10 (Reboot)

Undertow

Voiced by:

• Greg Cipes - Ben 10 (Reboot)

Gax

Voiced by:

• Yuri Lowenthal - Ben 10 (Reboot)

Shock Rock

Voiced by:

• David Kaye - Ben 10 (Reboot)

Slapback

Voiced by:

• Todd Haberkorn - Ben 10 (Reboot)

Antagonists

Vilgax

Voiced by:

• Steven Blum - Ben 10 and Ben 10: Omniverse
• James Remar - Ben 10: Alien Force and Ben 10: Ultimate Alien
• John DiMaggio - Ben 10 Alien Force: Vilgax Attacks and Ben 10: Galactic Racing
• Yuri Lowenthal - Ben 10 (2016)

Vilgax's Drones

Voiced by:

• Dee Bradley Baker - Ben 10
• Steve Blum - Ben 10: Omniverse

Doctor Animo

Voiced by:

• Dwight Schultz - Ben 10, Ben 10: Alien Force, Ben 10: Ultimate Alien, Ben 10: Omniverse & Ben 10 (2016)

Sixsix

Voiced by:

• Dee Bradley Baker - Ben 10
• Josh Keaton - Ben 10 (2016)

Kraab

Voiced by:

• Billy West - Ben 10
• Jeff Bennett - Ben 10: Alien Force
• Dee Bradley Baker - Ben 10: Omniverse
• Travis Willingham - Ben 10 (2016)

Rojo

Voiced by:

• Jennifer Hale - Ben 10 and Ben 10: Omniverse
• Kari Wahlgren - Ben 10: Ultimate Alien

Zombozo

Voiced by:

• John Kassir - Ben 10
• John DiMaggio - Ben 10: Ultimate Alien, Ben 10: Omniverse and Ben 10 (2016)

Circus Freak Trio

A trio that worked together under the guise of freak show performers in Zombozo's circus before his disappearance.

Acid Breath

Voiced by:

• Dee Bradley Baker - Ben 10 and Ben 10: Omniverse
• Josh Keaton - Ben 10 (2016)

Frightwig

Voiced by:

• Cree Summer - Ben 10 and Ben 10: Omniverse
• Jessica DiCicco - Ben 10 (2016) (first appearance)
• Montserrat Hernandez - Ben 10 (2016) (second appearance)

Thumbskull

Voiced by:

• Jeff Doucette - Ben 10
• David Kaye - Ben 10: Omniverse
• John DiMaggio - Ben 10 (2016)

Hex

Voiced by:

• Khary Payton – Ben 10, Ben 10: Alien Force, Ben 10: Ultimate Alien, and Ben 10: Omniverse
• Kari Wahlgren – Ben 10 (as a child in "Don't Drink the Water")
• Robin Atkin Downes - Ben 10 (2016)

Phil Billings

Voiced by:

• Robert Patrick - Ben 10
• Rob Paulsen - Ben 10: Omniverse
• John DiMaggio - Ben 10 (2016)

Forever Knights

The Forever Knights are a secret paramilitary organization dealing with alien encounters and other varying activities. They were founded by Sir George to fight Dagon, but his departure resulted in them splintering into factions, each led by a Forever King. During the events of Ultimate Alien, George reunites them to combat the Esoterica and Dagon. The ensuing conflict kills Sir George and wipes out all the Forever Knights, with only a small group under Chadwick remaining, consisting of Sir Morton, Red Knight, and the Twin Knights. Chadwick leads the remaining Forever Knights in eliminating all alien life from Earth.

In all three TV series and one video game, different VAs have voiced the Forever Knight soldiers: Dee Bradley Baker, Jeff Bennett, Greg Cipes, Tim Curry, John DiMaggio, Greg Ellis, Robert David Hall, Yuri Lowenthal, Peter MacNicol, Richard McGonagle, Scott Menville, Rob Paulsen, Khary Payton, Kevin Michael Richardson, and Fred Tatasciore.

Enoch

Voiced by:

• Richard Doyle - Ben 10 and Ben 10: Ultimate Alien

Forever King Driscoll

Voiced by:

• Richard Doyle - Ben 10 & Ben 10: Ultimate Alien

Red Knight

A ninja-like android Discroll created to serve as his bodyguard. It first appears in "Perfect Day" before serving as a member of the Negative 10 during "Ben 10 vs. the Negative 10", where it is destroyed by Ben as Upchuck.

The Red Knight is later rebuilt by Joseph Chadwick during the events of Ben 10: Omniverse to serve as his bodyguard.

Forever King Patrick

Voiced by:

• Michael York - Ben 10: Alien Force

Connor

Voiced by:

• Hakeem Kae-Kazim - Ben 10: Alien Force

Joseph Chadwick

Voiced by:

• Tim Curry - Ben 10: Alien Force, Ben 10: Omniverse ("Return to Forever")
• David Kaye - Ben 10: Omniverse ("An American Benwolf in London")

Sir Morton

Voiced by:

• Kevin Michael Richardson - Ben 10: Alien Force and Ben 10: Omniverse

Forever King Urian

Voiced by:

• Jim Piddock - Ben 10: Ultimate Alien

Sir Cyrus

Voiced by:

• Robin Atkin Downes - Ben 10: Ultimate Alien

Clancy

Voiced by:

• Nicholas Guest - Ben 10

Vulkanus

Voiced by:

• John DiMaggio - Ben 10, Ben 10: Alien Force, Ben 10: Ultimate Alien and Ben 10: Omniverse

Pickaxe Aliens

Voiced by:

• Dee Bradley Baker - Ben 10: Alien Force, Ben 10: Ultimate Alien and Ben 10: Omniverse

Charmcaster

Voiced by:

• Kari Wahlgren - Ben 10, Ben 10: Alien Force, Ben 10: Ultimate Alien and Ben 10: Omniverse
• Tara Strong - Ben 10 (2016)

Stone Creatures

The Stone Creatures are large rock golems from Ledgerdomain often used by Charmcaster.

Zs'Skayr

Voiced by:

• Steven Blum - Ben 10 and Ben 10 Omniverse
• Jeff Bennett - Ben 10: Alien Force

Yenaldooshi

A Loboan who was mistaken by Navajo Indians to be the Yenaldooshi, a werewolf-like creature from their folklore.

The Mummy

The Mummy is a Thep Khufan from the planet Anur Khufos and the genetic source of Snare-oh.

Viktor

Voiced by:

• Michael Dorn - Ben 10 and Ben 10: Omniverse
• Peter Stormare - Ben 10: Ultimate Alien (with King Xarion's mind)

Exo-Skull

Voiced by:

• Richard McGonagle - Ben 10
• David Kaye - Ben 10: Omniverse

Kane North

Voiced by:

• John Cygan - Ben 10
• Corey Burton - Ben 10: Omniverse

Eon

Portrayed by:

• Christien Anholt - Ben 10: Race Against Time

Voiced by:

• Yuri Lowenthal - Ben 10: Ultimate Alien (as Eon)
• Sean Donnellan - Ben 10: Ultimate Alien (as Alternate Ben)
• Judd Nelson - Ben 10: Omniverse

Eon's Servants

Eon's Servants are the servants of Eon.

Highbreed

Atasians, who call themselves the Highbreed, are xenophobic alien races from the planet Augstaka that serve as the primary antagonists of the first half of Alien Force.

Different VAs have voiced the Highbreed: Dee Bradley Baker, Paul Eiding, Robert David Hall, Richard McGonagle, and Kevin Michael Richardson.

DNAliens

DNAliens are lifeforms infected by Xenocytes, alien leeches artificially mass-produced by the Highbreed that attach to a host, altering their mind while gradually fusing to them to transform them into DNAliens. They serve the Highbreed as sacrificial drones and share their masters' speciesist ideals. As they thrive on cold weather, fire damages them beyond repair. Throughout Alien Force, Ben and his allies fight against them while encountering DNAliens created from human hosts.

Different VAs have voiced and provided the vocal effects for the DNAliens: Dee Bradley Baker, Jeff Bennett, Greg Cipes, Diane Delano, Paul Eiding, Will Friedle, Wallace Langham, and Richard McGonagle.

Gorvan

• John DiMaggio - Ben 10: Alien Force (video game)
• Rob Paulsen - Ben 10: Omniverse

Argit

Voiced by:

• Alexander Polinsky - Ben 10: Alien Force, Ben 10: Ultimate Alien, and Ben 10: Omniverse

Darkstar

Voiced by:

• Wil Wheaton - Ben 10: Alien Force, Ben 10: Ultimate Alien and Ben 10: Omniverse
• Drake Bell - Ben 10 (reboot) (first appearance)
• Yuri Lowenthal - Ben 10 (reboot) (second appearance)

The Incurseans

The Incurseans are a race of violent toad-like aliens with New York accents, who were forced to become spacefarers after the eon-long civil war on their homeworld ended a millennia ago. The war ended when an Incursean stole Ascalon from Azmuth and misused the weapon, resulting in the destruction of their homeworld. Though making small appearances in earlier episodes, the Incursions become more of a threat during arc 3 of Omniverse until Milleous is removed from power and Attea takes over.

Emperor Milleous

Voiced by:

• Kevin Michael Richardson – Ben 10: Alien Force and Ben 10: Omniverse
• Roger Craig Smith - Ben 10 Versus the Universe: The Movie

Princess Attea

Voiced by:

• Tara Strong – Ben 10: Alien Force and Ben 10: Omniverse

Raff

Voiced by:

• James Arnold Taylor - Ben 10: Alien Force
• Eric Bauza - Ben 10: Omniverse

Sevenseven

Voiced by:

• Dee Bradley Baker - Ben 10: Alien Force, Ben 10: Ultimate Alien, Ben 10: Omniverse

Albedo

Voiced by:

• Yuri Lowenthal - Ben 10: Alien Force, Ben 10: Ultimate Alien, and Ben 10: Omniverse (in 16-year-old Ben form)
• Eric Bauza - Ben 10: Omniverse (in Galvan form)
• Tara Strong - Ben 10: Omniverse (in 11-year-old Ben form)

Ultimate Albedo

Voiced by:

• Eric Bauza - Ben 10: Omniverse

The Queen

Voiced by:

• Wendy Cutler - Ben 10: Alien Swarm
• Herbert Siguenza - Ben 10: Alien Swarm (in Victor's body)
• Tia Texada - Ben 10: Ultimate Alien (in Elena's body)

Psyphon

Voiced by:

• Dee Bradley Baker - Ben 10: Alien Force, Ben 10: Ultimate Alien, & Ben 10: Omniverse

R.E.D.

The R.E.D.s (short for Robotic Extermination Devices) are red square-shaped robots that work for Psyphon.

Ssserpent

Voiced by:

• Dee Bradley Baker - Ben 10: Alien Force and Ben 10: Ultimate Alien

Vreedle Brothers

Voiced by:

• John DiMaggio - Octagon Vreedle - Ben 10: Alien Force, Ben 10: Ultimate Alien, & Ben 10: Omniverse
• Rob Paulsen - Rhomboid Vreedle - Ben 10: Alien Force, Ben 10: Ultimate Alien, & Ben 10: Omniverse

Sunder

Voiced by:

• Powers Boothe - Ben 10: Alien Force, Ben 10: Ultimate Alien
• David Kaye - Ben 10: Omniverse

Jarret

Voiced by:

• Alexander Polinsky - Ben 10: Alien Force and Ben 10: Omniverse

Will Harangue

Voiced by:

• John DiMaggio - Ben 10: Ultimate Alien and Ben 10: Omniverse

Aggregor

Voiced by:

• John DiMaggio - Ben 10: Ultimate Alien

Aggregor's Soldiers

Voiced by:

• Greg Cipes - Ben 10: Ultimate Alien (in "Escape From Aggregor")
• John DiMaggio - Ben 10: Ultimate Alien

Aggregor's Soldiers are Aggregor's servants, who, unlike Vilgax's drones, are humanoid robots.

Carl Nesmith

Voiced by:

• Christopher McDonald – Ben 10: Ultimate Alien and Ben 10: Omniverse

Computron

Voiced by:

• Dee Bradley Baker - Ben 10: Ultimate Alien

Computron's Minions

Voiced by:

• Eric Bauza - Ben 10: Ultimate Alien, Ben 10: Omniverse

King Xarion

Voiced by:

• Peter Stormare - Ben 10: Ultimate Alien

Addwaitya

Voiced by:

• John DiMaggio - Ben 10: Ultimate Alien
• Steven Blum - Ben 10: Omniverse

Pa Vreedle

Voiced by:

• Jeff Bennett - Ben 10: Ultimate Alien
• Steve Blum - Ben 10: Omniverse

Trumbipulor

Voiced by:

• Dee Bradley Baker - Ben 10: Ultimate Alien
• Eric Bauza - Ben 10: Omniverse

Dagon

Voiced by:

• John DiMaggio - Ben 10: Ultimate Alien

Lucubras

Voiced by:

• Dee Bradley Baker – Ben 10: Ultimate Alien

Flame Keepers' Circle

The Flame Keeper's Circle is a cult that worships Dagon.

Conduit Edwards

Voiced by:

• John DiMaggio - Ben 10: Ultimate Alien

Esoterica

The Esoterica are the foot soldiers of the Flame Keepers' Circle.

Ma Vreedle

Voiced by:

• Diane Delano - Ben 10: Ultimate Alien, Ben 10: Omniverse

Pretty Boy Vreedle

Voiced by:

• Diane Delano - Ben 10: Ultimate Alien, Ben 10: Omniverse

Dodechedron Vreedle

Voiced by:

• Diane Delano - Ben 10: Ultimate Alien
• Eric Bauza - Ben 10: Omniverse

Inspector 13

Voiced by:

• Dee Bradley Baker - Ben 10: Ultimate Alien and Ben 10: Omniverse

Techadon Robots

Voiced by:

• Bumper Robinson - Ben 10: Alien Force, Ben 10: Ultimate Alien and Ben 10: Omniverse

Malware

Voiced by:

• Corey Burton - Ben 10: Omniverse

Khyber

Voiced by:

• David Kaye - Ben 10: Omniverse

Dr. Psychobos

Voiced by:

• Eric Bauza - Ben 10: Omniverse

Undertown Thugs

A group of criminal aliens that reside in Undertown. They are mainly hired by Psyphon for different plans, but also act independently to commit other criminal acts.

Bubble Helmet

Voiced by:

• John DiMaggio - Ben 10: Omniverse

Fistina

Voiced by:

• Morgan Lofting - Ben 10: Omniverse

Liam

Voiced by:

• Paul Eiding - Ben 10: Omniverse

Thunderpig

Voiced by:

• Eric Bauza - Ben 10: Omniverse

Tummyhead

Voiced by:

• Rob Paulsen - Ben 10: Omniverse

Sweet-Eels Sparklefunk

Voiced by:

• Kevin Michael Richardson - Ben 10: Omniverse

Bouncers

Voiced by:

• David Kaye and Bumper Robinson - Ben 10: Omniverse

Bug-Lite

Voiced by:

• Bumper Robinson - Ben 10: Omniverse

Fistrick

Voiced by:

• Eric Bauza - Ben 10: Omniverse

Corvo

Voiced by:

• Bumper Robinson - Ben 10: Omniverse

Hoodlum

Voiced by:

• Paul Eiding - Ben 10: Omniverse (In "A Jolt From The Past")
• Yuri Lowenthal - Ben 10: Omniverse (In "No Honor Among Bros")

Thug

Voiced by:

• Dee Bradley Baker - Ben 10: Omniverse (In "A Jolt From The Past")
• Eric Bauza - Ben 10: Omniverse (In "No Honor Among Bros")

Solid Plugg

Voiced by:

• Eric Bauza - Ben 10: Omniverse

Princess Looma Red Wind

Voiced by:

• Kimberly Brooks - Ben 10: Omniverse

Billy Billions

Voiced by:

• Aziz Ansari - Ben 10: Omniverse
• Gunnar Sizemore - Ben 10 (reboot)

Mazuma

Voiced by:

• Tara Strong - Ben 10: Omniverse

Nyancy Chan

Voiced by:

• Gwendoline Yeo - Ben 10: Omniverse

EightEight

Voiced by:

• Dee Bradley Baker - Ben 10: Omniverse

Way Bads

Voced by:

• Eric Bauza - Ben 10: Omniverse

Crujo

Voiced by:

• Bumper Robinson - Ben 10: Omniverse

Kuphulu

Voiced by:

• Jeffrey Combs - Ben 10: Omniverse

Lord Transyl

Voiced by:

• David Kaye - Ben 10: Omniverse

Rooters

The Rooters are a special Plumber black ops unit in the Null Void, who hold higher rank than other Plumber branches and answer only to the High Protectorate.

Servantis

Voiced by:

• Charlie Adler - Ben 10: Omniverse

Leander

Leander is a human/Prypiatosian-B hybrid in a black Proto-Tech Armor who is a member of the Rooters.

Swift

Voiced by:

• Tara Strong - Ben 10: Omniverse

Swift is a human/Aerophibian hybrid with retractable patagia who is a member of the Rooters.

Kundo

Voiced by:

• Jeff Bennett - Ben 10: Omniverse

Maltruant

Voiced by:

• Mark Hamill - Ben 10: Omniverse

Subdora

Voiced by:

• Tara Platt - Ben 10: Omniverse

References

1. De Boever, Arne (2018-03-06), "Financing the Novel: Ben Lerner's 10:04", Finance Fictions, Fordham University Press, doi:10.5422/fordham/9780823279166.003.0007, ISBN 978-0-8232-7916-6
2. . Archived from the original on 2011-04-14.

1. 15 in Alien Force and 16 in Ultimate Alien and Universe
2. 65 in Ben 10: Alien Force, 66 in Ben 10: Ultimate Alien and in Ben 10: Omniverse
3. 16 in Ben 10: Alien Force, 17 in Ben 10: Ultimate Alien (through present)

External links

• Ben 10 Characters official US site