# 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). It is also available for streaming on Disney+ in selected regions.

## 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.

## 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-hyeon 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 ₩30 billion.
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.

## Viewership

| Season | Season | Episode number | Episode number | Episode number | Episode number | Episode number | Episode number | Episode number | Episode number | Episode number | Episode number | Episode number | Episode number | Episode number | Episode number | Episode number | Episode number | Average |
| Season | Season | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | Average |
| | 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 |
Average TV viewership ratings :
| Ep. | Original broadcast date | Average audience share | Average audience share | Average audience share |
| Ep. | Original broadcast date | Nielsen Korea | Nielsen Korea | TNmS |
| Ep. | Original broadcast date | 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 | Average | 10.0% | 10.1% | 9.7 |
| 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 |
| MBC Drama Awards | 2022 | Grand Prize (Daesang) | Lee Jong-suk | Won |
| MBC Drama Awards | 2022 | Drama of the Year | Big Mouth | Won |
| MBC Drama Awards | 2022 | Top Excellence Award, Actor in a Miniseries | Lee Jong-suk | Nominated |
| MBC Drama Awards | 2022 | Top Excellence Award, Actress in a Miniseries | Im Yoon-ah | Won |
| MBC Drama Awards | 2022 | Best Couple Award | Lee Jong-suk and Im Yoon-ah | Won |