Big Mouth (South Korean TV series)

Big Mouth (Korean: 빅마우스) is a 2022 South Korean television series starring Lee Jong-suk, Im Yoon-ah, and Kim Joo-hun. It aired on MBC TV from July 29 to September 17, 2022, every Friday and Saturday at 21:50 (KST).^[10][11] It is also available for streaming on Disney+ in selected regions.^[12]

Big Mouth
Promotional poster
Also known as	Big Mouse^[a]^[2]
Hangul	빅마우스
Revised Romanization	Bigma-useu
Genre	Hardboiled^[3] Noir^[3] Legal^[4] Crime^[5]
Created by	Jang Young-chul^[1] Jung Kyung-soon^[1]
Developed by	Kim Ho-jun (planning)^[6]
Written by	Kim Ha-ram^[7]
Directed by	Oh Chung-hwan^[6] Bae Hyun-jin^[6]
Starring	Lee Jong-suk Im Yoon-ah Kim Joo-hun
Music by	Park Se-joon^[8]
Country of origin	South Korea
Original language	Korean
No. of episodes	16
Production
Executive producer	Ahn In-yong^[6]
Producers	Lee Sang-baek^[6] Kim Young-gyu^[6]
Production companies	AStory^[7] Studio Dragon^[7] A-Man Project^[7]
Budget	₩30 billion^[9]
Original release
Network	MBC TV
Release	July 29 (2022-07-29) – September 17, 2022 (2022-09-17)

Synopsis

The series tells the story of an underperforming lawyer who gets caught up in a murder case. In order to survive and protect his family, he digs into a huge conspiracy among the privileged upper classes.^[1][10][13]

Cast

Main

• Lee Jong-suk as Park Chang-ho

A third-rate lawyer with a ten percent success rate, called "Big Mouth" by his legal acquaintances due to his tendency to speak before acting. His life is suddenly in danger when he is mistaken for a genius conman known as "Big Mouse".^[a][14]

• Im Yoon-ah as Ko Mi-ho

Chang-ho's supportive wife who is a nurse and has a bold personality, as well as outstanding beauty.^[1][15]

• Kim Joo-hun as Choi Do-ha

The ambitious mayor of Gucheon, whose goal in life is to become the most dignified president.^[16][17]

Supporting

NR Forum

• Yang Kyung-won as Gong Ji-hoon

The president of the media conglomerate Gukdong Daily and the chairman of the NR Forum.^[16]

• Kim Jung-hyun as Jung Chae-bong

The director of Chilbong Academy.^[18]

• Lee Yoo-joon as Han Jae-ho

A surgeon.^[19]

• Oh Ryung as Lee Du-geun

Legal counsel of NR Forum.^[18]

• Yoon Seok-hyun as Cha Seung-tae

Managing director of OC Group.^[18]

• Park Hoon as Seo Jae-yong

Head of the Department of Internal Medicine, Hematology and Oncology at Gucheon University Hospital.^[18]

• Hong Ji-hee as Jang Hye-jin

Jae-ho's wife who is a culinary researcher.^[18][20]

• Kim Kyu-seon as Ashley Kim

Ji-hoon's wife, who is a Korean-American and the director of Woojung Gallery.^[21]

• Jang Hyuk-jin as Choi Jung-rak

A prosecutor at Gucheon Public Prosecutors' Office.^[18]

Gucheon Hospital

• Ok Ja-yeon as Hyun Ju-hee

Do-ha's wife who is the director of Gucheon Hospital.^[16]

• Kim Seon-hwa as Park Mi-young

The head nurse at Gucheon Hospital.^[22]

• Park Se-hyeon as Jang Hee-joo

A nurse at Gucheon Hospital.^[18]

Gucheon Prison

• Jeong Jae-sung as Park Yoon-gap

The prison warden of Gucheon Prison.^[23]

• Kim Dong-won as Gan Su-cheol

A prison officer at Gucheon Prison.^[24]

• Kwak Dong-yeon as Jerry / Oh Jin-chul (real name)

A scammer with three previous convictions who respects the genius conman "Big Mouse".^[16][25]

• Yang Hyung-wook as Noh Park

A prisoner at Gucheon Prison.^[26]

People around Chang-ho

• Lee Ki-young as Ko Gi-kwang

Mi-ho's father.^[26]

• Oh Eui-shik as Kim Soon-tae

A lawyer who is Chang-ho's best friend and assistant.^[27]

Extended

• Yoo Tae-ju as Tak Kwang-yeon

A psychopath death row inmate at Gucheon Prison.^[28][29]

• Song Kyung-cheol as Yang Chun-sik

A gang leader.^[30]

• Park Jeong-bok as Go Tae-sik

A prisoner at Gucheon Prison.^[31]

• Shin Seung-hwan as Peter Hong^[32]
• Jeon Gook-hwan as Kang Seong-geun (Chairman Kang)^[33][34]

Special appearances

• Yoo Su-bin as Chang-ho and Mi-ho's neighbor.^[35]
• Kim Do-wan as Chang-ho and Mi-ho's neighbor.^[35]

Production and release

It was reported that filming was scheduled to start in the second half of 2021, with a budget of ₩30 billion.^[9][17]

Big Mouth was initially confirmed to be released on tvN.^[10] However, in April 2022, it was announced that the series would air on MBC TV's newly established Fridays and Saturdays time slot instead, in July.^[36]

Original soundtrack

Part 1

Released on August 6, 2022 (2022-08-06)^[37]

No.	Title	Lyrics	Music	Artist	Length
1.	"Brand New"	Justhis	Woo Ji-hun Park Se-joon	Justhis	2:51
2.	"Brand New" (Inst.)		Woo Ji-hun Park Se-joon		2:51
Total length:					5:42

Viewership

Big Mouth : South Korea viewers per episode (millions)

Season		Episode number																Average
		1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
	1	1.124	1.129	1.431	1.685	1.732	1.951	1.977	1.888	2.008	1.771	2.054	2.228	1.534	1.960	2.145	2.527	1.822

Source: Audience measurement performed nationwide by Nielsen Korea.^[38]

Average TV viewership ratings

Ep.	Original broadcast date	Average audience share
		Nielsen Korea^[38]		TNmS^[39]
		Nationwide	Seoul	Nationwide
1	July 29, 2022	6.2% (7th)	6.3% (7th)	5.6% (10th)
2	July 30, 2022	6.1% (5th)	6.4% (4th)	6.1% (7th)
3	August 5, 2022	7.6% (4th)	8.1% (4th)	8.1% (5th)
4	August 6, 2022	8.6% (2nd)	8.7% (2nd)	N/A
5	August 12, 2022	9.8% (4th)	10.0% (3rd)	9.6% (4th)
6	August 13, 2022	10.8% (2nd)	10.8% (2nd)	10.0% (2nd)
7	August 19, 2022	11.2% (3rd)	11.4% (3rd)	10.1% (4th)
8	August 20, 2022	10.4% (2nd)	10.3% (2nd)	9.6% (2nd)
9	August 26, 2022	11.5% (2nd)	11.7% (2nd)	11.0% (2nd)
10	August 27, 2022	10.0% (2nd)	10.2% (2nd)	9.4% (2nd)
11	September 2, 2022	11.4% (4th)	11.4% (3rd)	11.2% (4th)
12	September 3, 2022	12.0% (2nd)	12.0% (2nd)	11.4% (2nd)
13	September 9, 2022	8.3% (4th)	8.3% (4th)	N/A
14	September 10, 2022	10.6% (2nd)	10.3% (2nd)	10.1% (2nd)
15	September 16, 2022	12.3% (3rd)	12.4% (3rd)	10.5% (3rd)
16	September 17, 2022	13.7% (2nd)	13.9% (2nd)	12.5% (2nd)
Average		10.0%	10.1%	9.7^[b]
In the table above, the blue numbers represent the lowest ratings and the red numbers represent the highest ratings. N/A denotes ratings that were not released.

Awards and nominations

Award ceremony	Year	Category	Nominee(s) / Work	Result	Ref.
MBC Drama Awards	2022	Grand Prize (Daesang)	Lee Jong-suk	Won	^[40]
		Drama of the Year	Big Mouth	Won
		Top Excellence Award, Actor in a Miniseries	Lee Jong-suk	Nominated
		Top Excellence Award, Actress in a Miniseries	Im Yoon-ah	Won
		Best Couple Award	Lee Jong-suk and Im Yoon-ah	Won

Notes

1. "Big Mouth" and "Big Mouse" are both written as 빅마우스 in Korean.^[1]
2. This average ratings is calculated based on the published ratings, the exact average ratings is unknown due to multiple ratings not published.

References

1. Lee Nam-kyung (September 1, 2021). "이종석X임윤아 출연확정, '빅마우스' 캐스팅…역대급 부부 케미 예고(공식)" (in Korean). Maeil Broadcasting Network. from the original on January 6, 2022. Retrieved January 6, 2022 – via Naver.
2. . AStory. Archived from the original on January 13, 2022. Retrieved January 13, 2022.
3. Lee Gyu-lee (July 30, 2022). "Lee Jong-suk teams up with Im Yoon-ah for small screen noir 'Big Mouth'". The Korea Times. from the original on August 5, 2022. Retrieved August 5, 2022.
4. "Big Mouth". HanCinema. from the original on July 24, 2022. Retrieved July 24, 2022.
5. Lee Gyu-lee (June 17, 2022). "Female-centric series, stars' small screen comebacks set for July". The Korea Times. from the original on June 21, 2022. Retrieved June 21, 2022.
6. "프로그램 소개" [Program Introduction]. Munhwa Broadcasting Corporation (in Korean). from the original on June 30, 2022. Retrieved June 30, 2022.
7. Kim Ga-young (June 8, 2022). "'빅마우스' 이종석X임윤아, 연기 호흡 빛난 대본리딩 현장 공개" ['Big Mouth' Lee Jong-suk X Im Yoon-ah, the script reading scene revealed] (in Korean). E Daily. from the original on June 8, 2022. Retrieved June 8, 2022 – via Naver.
8. "빅마우스 OST Part. 1". Bugs! (in Korean). from the original on August 14, 2022. Retrieved August 6, 2022.
9. Kim Jong-eun (July 30, 2022). "'빅마우스' 기대보단 글쎄 [첫방기획]". TV Daily (in Korean). from the original on August 8, 2022. Retrieved August 8, 2022.
10. Yim Seung-hye (September 1, 2021). "Lee Jong-suk, Girls' Generation's Yoona cast in upcoming tvN drama". Korea JoongAng Daily. from the original on January 6, 2022. Retrieved January 6, 2022.
11. Choi Yun-na (June 22, 2022). "이종석X임윤아, 서로를 향한 시선…'빅마우스' 메인 포스터 공개" (in Korean). Sports Dong-a. from the original on June 22, 2022. Retrieved June 22, 2022 – via Naver.
12. Jeon Hyo-jin (March 3, 2022). "이종석 '빅마우스'·유재석 '더존', 디즈니+ 라인업 합류" [Lee Jong-suk's 'Big Mouth' and Yoo Jae-suk's 'The Zone' join the Disney+ lineup] (in Korean). Sports Dong-a. from the original on June 19, 2022. Retrieved June 19, 2022 – via Naver.
13. William Schwartz (April 22, 2021). "[HanCinema's News] Lee Jong-suk Receives Offer for "Big Mouth"". HanCinema. from the original on March 25, 2022. Retrieved January 6, 2022.
14. "Lee Jong-suk and Yoona to Star as Married Couple in tvN's "Big Mouth"". HanCinema. E Today. September 1, 2021. from the original on January 6, 2022. Retrieved January 6, 2022.
15. "Yoona and Lee Jong-suk Possibly in "Big Mouth" as a Married Couple". HanCinema. Star Today. May 18, 2021. from the original on January 6, 2022. Retrieved January 6, 2022.
16. ""Big Mouth" With Kim Joo-hun, Ok Ja-yeon, Yang Kyung-won, Kwak Dong-yeon". HanCinema. TV Daily. November 4, 2021. from the original on January 6, 2022. Retrieved January 6, 2022.
17. Kim Jin-seok (July 23, 2021). "[단독]김주헌·옥자연·곽동연, 드라마 '빅 마우스' 주연 합류". Ilgan Sports (in Korean). from the original on August 14, 2022. Retrieved January 27, 2022.
18. "등장인물" [Characters]. Munhwa Broadcasting Corporation (in Korean). from the original on July 24, 2022. Retrieved July 24, 2022.
19. Ha Ji-won (December 8, 2021). "이유준, '빅마우스' 캐스팅…이종석·윤아와 호흡 [공식입장]" (in Korean). Xports News. from the original on January 6, 2022. Retrieved January 6, 2022 – via Naver.
20. Park Pan-seok (July 30, 2022). "빅마우스' 홍지희, 이종석 향한 경고 시발점 알렸다..키플레이어 활약" ['Big Mouth' Hong Ji-hee, a warning to Lee Jong-suk announced the starting point.. Key players] (in Korean). OSEN. from the original on July 30, 2022. Retrieved July 30, 2022 – via Naver.
21. Choi Hee-jae (July 12, 2022). "김규선, '빅마우스' 출연 확정…양경원과 부부 호흡 [공식입장]" [Kim Kyu-seon confirmed to appear in 'Big Mouth'… Couple breathing with Yang Kyung-won [Official position]] (in Korean). Xports News. from the original on July 12, 2022. Retrieved July 12, 2022 – via Naver.
22. Yoo Jung-min (June 9, 2022). "김선화, '빅마우스' 출연 확정…이종석·임윤아와 호흡" [Kim Seon-hwa confirmed to appear in 'Big Mouth'… Breathing with Lee Jong-suk and Im Yoon-ah] (in Korean). iMBC. from the original on June 9, 2022. Retrieved June 9, 2022 – via Naver.
23. Baek Seung-hoon (July 1, 2022). "정재성, '빅마우스' 교도소장役 출연 [공식입장]" [Jung Jae-sung to appear as prison warden in 'Big Mouth' [Official Position]] (in Korean). iMBC. from the original on July 1, 2022. Retrieved July 1, 2022 – via Naver.
24. Yoo Jung-min (May 4, 2022). "김동원, '빅마우스' 출연 확정…교도관 간수철役" [Kim Dong-won confirmed to appear in 'Big Mouth'… Prison Officer Gan Su-cheol] (in Korean). iMBC. from the original on May 4, 2022. Retrieved May 4, 2022 – via Naver.
25. Kim Han-na (August 19, 2022). "'빅마우스' 이종석, 양경원 음모로 정신센터 감금당했다[종합]" (in Korean). Sports Kyunghyang. from the original on September 4, 2022. Retrieved September 4, 2022 – via Naver.
26. Baek Seung-hoon (July 4, 2022). "이종석·임윤아 '빅마우스', 얽히고설킨 인물 관계" [Lee Jong-suk·Im Yoon-ah 'Big Mouth', Intertwined Character Relationships] (in Korean). iMBC. from the original on July 4, 2022. Retrieved July 4, 2022 – via Naver.
27. "Oh Eui-sik in tvN's "Big Mouth" as Lee Jong-suk's Best Friend". HanCinema. Sports World. December 2, 2021. from the original on December 4, 2021. Retrieved January 6, 2022.
28. Baek Seung-hoon (July 21, 2022). "신예 유태주, MBC '빅마우스' 캐스팅…이종석과 호흡" [Rookie Yoo Tae-ju, cast in MBC's 'Big Mouth'… Lee Jong-suk and breathing] (in Korean). iMBC. from the original on July 21, 2022. Retrieved July 21, 2022 – via Naver.
29. Ahn Byung-gil (August 6, 2022). "'빅마우스' 최고 9.9%, 먹이사슬 최강자 떴다[종합]" (in Korean). Sports Kyunghyang. from the original on September 14, 2022. Retrieved September 14, 2022 – via Naver.
30. Seo Yu-na (July 31, 2022). "이종석, 죽으려 사이코패스에 엄마 드립+뺨따귀 "제발 죽여줘"(빅마우스)[어제TV]" (in Korean). Newsen. from the original on July 31, 2022. Retrieved July 31, 2022 – via Naver.
31. Lee Ho-young (August 7, 2022). "'우영우' 최검사役 박정복, '빅마우스' 이종석 암살자로 변신" [Park Jeong-bok as prosecutor Choi Young-woo in 'Woo Young-woo' transforms into assassin Lee Jong-seok in 'Big Mouth'] (in Korean). iMBC. from the original on August 7, 2022. Retrieved August 7, 2022 – via Naver.
32. Lee Mi-ji (August 13, 2022). "'빅마우스' 이종석, 암흑세계의 제왕 빅마우스 포스..다크 카리스마 장착" (in Korean). Herald Pop. from the original on August 14, 2022. Retrieved August 13, 2022 – via Naver.
33. Kim Han-na (September 4, 2022). "'빅마우스' 이종석, 골리앗 전국환에 선전포고...양형욱 사망[종합]" ['Big Mouth' Lee Jong-suk declares war on Goliath nationwide... Yang Hyung-wook dies [Comprehensive]] (in Korean). Sports Kyunghyang. from the original on September 3, 2022. Retrieved September 4, 2022 – via Naver.
34. Kim Ok-ju (September 3, 2022). "'빅마우스' 드디어 드러난 범인의 윤곽..김동원 이종석 살인지시[★밤TV]" (in Korean). Star News. from the original on September 5, 2022. Retrieved September 5, 2022 – via Naver.
35. Kim Hye-young (July 30, 2022). "이종석-임윤아, 윗집 청년 유수빈-김도완에 '분노' (빅마우스)" (in Korean). iMBC. from the original on July 30, 2022. Retrieved July 30, 2022 – via Naver.
36. Kim Na-young (April 26, 2022). "이종석X임윤아 '빅마우스', MBC 편성 확정…역대급 느와르 예고" (in Korean). MK Sports. from the original on April 26, 2022. Retrieved April 26, 2022 – via Naver.
37. "빅마우스 OST Part. 1" [Big Mouth OST Part.1] (in Korean). Dreamus. AStory. August 6, 2022. from the original on August 6, 2022. Retrieved August 6, 2022 – via Melon.
38. Nielsen Korea ratings:
    • "Ep. 1". Nielsen Korea (in Korean). July 29, 2022. from the original on July 30, 2022. Retrieved July 30, 2022.
    • "Ep. 2". Nielsen Korea (in Korean). July 30, 2022. from the original on July 31, 2022. Retrieved July 31, 2022.
    • "Ep. 3". Nielsen Korea (in Korean). August 5, 2022. from the original on August 7, 2022. Retrieved August 6, 2022.
    • "Ep. 4". Nielsen Korea (in Korean). August 6, 2022. Retrieved August 7, 2022.
    • "Ep. 5". Nielsen Korea (in Korean). August 12, 2022. Retrieved August 13, 2022.
    • "Ep. 6". Nielsen Korea (in Korean). August 14, 2022. from the original on August 14, 2022. Retrieved August 14, 2022.
    • "Ep. 7". Nielsen Korea (in Korean). August 19, 2022. from the original on August 27, 2022. Retrieved August 20, 2022.
    • "Ep. 8". Nielsen Korea (in Korean). August 20, 2022. from the original on August 27, 2022. Retrieved August 27, 2022.
    • "Ep. 9". Nielsen Korea (in Korean). August 26, 2022. from the original on August 27, 2022. Retrieved August 27, 2022.
    • "Ep. 10". Nielsen Korea (in Korean). August 27, 2022. from the original on August 28, 2022. Retrieved August 28, 2022.
    • "Ep. 11". Nielsen Korea (in Korean). September 2, 2022. from the original on September 2, 2022. Retrieved September 3, 2022.
    • "Ep. 12". Nielsen Korea (in Korean). September 3, 2022. from the original on September 3, 2022. Retrieved September 4, 2022.
    • "Ep. 13". Nielsen Korea (in Korean). September 9, 2022. from the original on September 11, 2022. Retrieved September 10, 2022.
    • "Ep. 14". Nielsen Korea (in Korean). September 10, 2022. Retrieved September 11, 2022.
    • "Ep. 15". Nielsen Korea (in Korean). September 16, 2022. from the original on September 20, 2022. Retrieved September 17, 2022.
    • "Ep. 16". Nielsen Korea (in Korean). September 17, 2022. from the original on September 21, 2022. Retrieved September 18, 2022.
39. TNms ratings:
    • "Ep. 1". Breaknews (in Korean). July 30, 2022. from the original on July 30, 2022. Retrieved July 30, 2022.
    • "Ep. 2". Breaknews (in Korean). July 31, 2022. from the original on July 31, 2022. Retrieved July 31, 2022.
    • "Ep. 3". Breaknews (in Korean). August 6, 2022. from the original on August 6, 2022. Retrieved August 6, 2022.
    • "Ep. 5". Breaknews (in Korean). August 13, 2022. from the original on August 14, 2022. Retrieved August 13, 2022.
    • "Ep. 6". Breaknews (in Korean). August 14, 2022. from the original on August 14, 2022. Retrieved August 14, 2022.
    • "Ep. 7". Breaknews (in Korean). August 20, 2022. from the original on August 21, 2022. Retrieved August 20, 2022.
    • "Ep. 8". Breaknews (in Korean). August 21, 2022. from the original on August 21, 2022. Retrieved August 21, 2022.
    • "Ep. 9". Breaknews (in Korean). August 27, 2022. from the original on August 27, 2022. Retrieved August 27, 2022.
    • "Ep. 10". Breaknews (in Korean). August 28, 2022. from the original on August 28, 2022. Retrieved August 28, 2022.
    • "Ep. 11". Breaknews (in Korean). September 3, 2022. Retrieved September 3, 2022.
    • "Ep. 12". Breaknews (in Korean). September 4, 2022. Retrieved September 4, 2022.
    • "Ep. 14". Breaknews (in Korean). September 11, 2022. from the original on September 11, 2022. Retrieved September 11, 2022.
    • "Ep. 15". Breaknews (in Korean). September 17, 2022. from the original on September 20, 2022. Retrieved September 17, 2022.
    • "Ep. 16". Breaknews (in Korean). September 18, 2022. from the original on September 18, 2022. Retrieved September 18, 2022.
40. Jeong, Han-byul (December 30, 2022). "이종석, 'MBC 연기대상' 6년 만 대상 "20대 때와 다른 느낌" [종합]" [Lee Jong-suk, 'MBC Drama Awards' grand prize in 6 years "Feels different from when I was in my 20s" [Comprehensive]] (in Korean). Hankook Ilbo. from the original on December 30, 2022. Retrieved December 30, 2022 – via Naver.

External links

• Official website (in Korean)
• Production website at AStory (in Korean and English)
• Production website at Studio Dragon (in Korean and English)
• Big Mouth at IMDb  
• Big Mouth at HanCinema