Big Mouth () 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. It is also available for streaming on Disney+ in selected regions.
Synopsis The series follows an underperforming lawyer caught in a murder case. To survive and protect his family, he uncovers a conspiracy among the upper classes.
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". Im Yoon-ah as Ko Mi-ho Chang-ho's supportive wife who is a nurse and has a bold personality but succumbs to cancer. Kim Joo-hun as Choi Do-ha The ambitious mayor of Gucheon, whose goal in life is to become the most dignified president.
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. Kim Jung-hyun as Jung Chae-bong The director of Chilbong Academy. Lee Yoo-joon as Han Jae-ho A surgeon. Oh Ryung as Lee Du-geun Legal counsel of NR Forum. Yoon Seok-hyun as Cha Seung-tae Managing director of OC Group. Park Hoon as Seo Jae-yong Head of the Department of Internal Medicine, Hematology and Oncology at Gucheon University Hospital. Hong Ji-hee as Jang Hye-jin Jae-ho's wife who is a culinary researcher. Kim Kyu-seon as Ashley Kim Ji-hoon's wife, who is a Korean-American and the director of Woojung Gallery. Jang Hyuk-jin as Choi Jung-rak A prosecutor at Gucheon Public Prosecutors' Office.
Gucheon Hospital Ok Ja-yeon as Hyun Ju-hee Do-ha's wife who is the director of Gucheon Hospital. Kim Seon-hwa as Park Mi-young The head nurse at Gucheon Hospital. Park Se-hyun as Jang Hee-joo A nurse at Gucheon Hospital.
Gucheon Prison Jeong Jae-sung as Park Yoon-gap The prison warden of Gucheon Prison. Kim Dong-won as Gan Su-cheol A prison officer at Gucheon Prison. Kwak Dong-yeon as Jerry / Oh Jin-chul (real name) A scammer with three previous convictions who respects the genius conman "Big Mouse". Yang Hyung-wook as Noh Park A prisoner at Gucheon Prison.
People around Chang-ho Lee Ki-young as Ko Gi-kwang Mi-ho's father. Oh Eui-shik as Kim Soon-tae A lawyer who is Chang-ho's best friend and assistant.
Extended Yoo Tae-ju as Tak Kwang-yeon A psychopath death row inmate at Gucheon Prison. Song Kyung-cheol as Yang Chun-sik A gang leader. Park Jeong-bok as Go Tae-sik A prisoner at Gucheon Prison. Shin Seung-hwan as Peter Hong Jeon Gook-hwan as Kang Seong-geun (Chairman Kang)
Special appearances Yoo Su-bin as Chang-ho and Mi-ho's neighbor. Kim Do-wan as Chang-ho and Mi-ho's neighbor.
Production and release It was reported that filming was scheduled to start in the second half of 2021, with a budget of .
Big Mouth was initially confirmed to be released on tvN. 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.
Original soundtrack Part 1
Viewership
+ Average TV viewership ratings Original broadcast date Average audience share Nielsen KoreaNielsen Korea ratings:
TNmSTNms ratings:
Nationwide Seoul Nationwide 1 July 29, 2022 6.2% 2 July 30, 2022 6.4% 6.1% 3 August 5, 2022 7.6% 8.1% 8.1% 4 August 6, 2022 8.6% 8.7% 5 August 12, 2022 9.8% 10.0% 9.6% 6 August 13, 2022 10.8% 10.8% 10.0% 7 August 19, 2022 11.2% 11.4% 10.1% 8 August 20, 2022 10.4% 10.3% 9.6% 9 August 26, 2022 11.5% 11.7% 11.0% 10 August 27, 2022 10.0% 10.2% 9.4% 11 September 2, 2022 11.4% 11.4% 11.2% 12 September 3, 2022 12.0% 12.0% 11.4% 13 September 9, 2022 8.3% 8.3% 14 September 10, 2022 10.6% 10.3% 10.1% 15 September 16, 2022 12.3% 12.4% 10.5% 16 September 17, 2022 Average In the table above, the represent the lowest ratings and the represent the highest ratings. N/A denotes ratings that were not released.
Awards and nominations Award ceremony Year Category Nominee(s) / Work Result MBC Drama Awards 2022 Grand Prize (Daesang) Lee Jong-suk Drama of the Year Big Mouth Top Excellence Award, Actor in a Miniseries Lee Jong-suk Top Excellence Award, Actress in a Miniseries Im Yoon-ah Best Couple Award Lee Jong-suk and Im Yoon-ah
Notes
References
External links