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Big Mouth

Title: 빅마우스 / Big Mouth
Previously known as: Big Mouse
Genre: Legal, Crime
Episodes: 16
Broadcast network: MBC
Broadcast period: 2022-July-29 to 2022-Sep-17
Air time: Friday & Saturday 21:50


This drama 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.


Main Cast

Lee Jong Suk as Park Chang Ho
Im Yoon Ah as Go Mi Ho
Kim Joo Hun as Choi Do Ha

NR Forum

Yang Kyung Won as Gong Ji Hoon
Kim Jung Hyun as Jung Chae Bong
Lee Yoo Joon as Han Jae Ho
Oh Ryong as Lee Doo Keun
Yoon Suk Hyun (윤석현) as Cha Seung Tae
Park Hoon as Seo Jae Yong
Kim Kyu Sun as Ashley Kim
Jang Hyuk Jin as Choi Joong Rak

Gucheon Hospital

Ok Ja Yeon as Hyun Joo Hee
Kim Sun Hwa (김선화) as Park Mi Young
Park Se Hyun as Jang Hee Joo

Gucheon Prison

Jung Jae Sung as Park Yoon Kap
Kwak Dong Yeon as Jerry
Yang Hyung Wook as Noh Park

People around Chang Ho

Lee Ki Young as Ko Ki Kwang (Min Ho’s father)
Oh Ui Shik as Kim Soon Tae

Production Credits

Production Companies: Studio Dragon, Astory Entertainment, A-Man Project
Directors: Oh Choong Hwan, Bae Hyun Jin
Screenwriter: Kim Ha Ram


“Big Mouth” and “Big Mouse” are both written as 빅마우스 in Korean.

Episode Ratings

    Nationwide Seoul Nationwide Seoul
2022-07-29 1 5.6 - 6.2 (7th) 6.3 (7th)
2022-07-30 2 6.1 - 6.1 (5th) 6.4 (4th)
2022-08-05 3 8.1 - 7.6 (4th) 8.1 (4th)
2022-08-06 4 - - 8.6 (2nd) 8.7 (2nd)
2022-08-12 5 9.6 - 9.8 (4th) 10.0 (3rd)
2022-08-13 6 10.0 - 10.8 (2nd) 10.8 (2nd)
2022-08-19 7 10.1 - 11.2 (3rd) 11.4 (3rd)
2022-08-20 8 9.6 - 10.3 (2nd) 10.4 (2nd)
2022-08-26 9 11.0 - 11.5 (2nd) 11.7 (2nd)
2022-08-27 10 9.4 - 10.0 (2nd) 10.2 (2nd)
2022-09-02 11 11.2 - 11.4 (4th) 11.4 (3rd)
2022-09-03 12 11.4 - 12.0 (2nd) 12.0 (2nd)
2022-09-09 13 - - 8.3 (4th) 8.3 (4th)
2022-09-10 14 10.1 - 10.6 (2nd) 10.3 (2nd)
2022-09-16 15 10.5 - 12.3 (3rd) 12.4 (3rd)
2022-09-17 16 - - 13.7 (2nd) 13.9 (2nd)

Sources: TNmS Media Korea & AGB Nielsen Korea


Main Charterer

Related Photo

(Other Photo from Official Site)

Official Site

Official Poster

Official Trailer
Trailer I
Trailer II

Watch Online in Viki.com (Coming Soon)


  1. 1 : CAC Says:

    Disney Plus in limited regions.

  2. 2 : judypie Says:

    Good morning, CAC.
    Info noted. Thanks.

    Lately we seem to be experiencing a deludge so many new and old k-dramas. Not complaining. I am still bowled over by this good fortune. Hehe !!

    Never before had I to juggle which drama should I watch first when a few got screened at the same time. Ayuh !! Hahaha !! Again, not complaining !!

    Have good weekend, everyone !!

  3. 3 : mml Says:

    Don’t like this ‘big mouth’ drama . The name of this drama is big mouth cannot attract me to watch .

  4. 4 : jewel placheta Says:


  5. 5 : ssak3 Says:

    You can watch the drama “Big Mouse” for free by accessing the site below.

    Click on the relevant link for instructions


  6. 6 : Prevail Chukwubuotam Says:

    I’m currently watching Big Mouth. It’s so wonderful and intriguing. Especially the male lead- Lee Jong Suk

  7. 7 : Andrew Says:

    MBC’s Friday and Saturday drama “Big Mouth” continues to increase in ratings.
    It was reported that the sixth episode finally achieved two-digit ratings. The sixth episode aired on August 13th, garnered a 10.8% nationwide rating (Nielsen Korea). This is the highest rating up to date for the drama.

    “Big Mouth” started with a 6.2% rating. It got a 4.7% increase compared to when the drama started.

    The series revolves around Park Chang Ho, a lawyer with a 10% winning rate. It is the latest work of directors Oh Choong Hwan and Bae Hyun Jin, and writers Jang Young Chul and Jung Kyung Soon.

    The drama is led by Lee Jong Suk and Girls Generation’s Im Yoon Ah. The supporting cast includes Yang Kyung Won, Kim Joo Heon, Ok Ja Yeon, Kwak Dong Yeon, and more.

    “Big Mouth” is currently leading among the dramas that are airing on the same day.
    This is the latest work of Lee Jong Suk after three years. After “Big Mouth,” the actor will be part of the upcoming film “Decibel” with Kim Rae Won, Jung Sang Hoon, Park Byung Eun, Lee Sang Hee, ASTRO’s Cha Eun Woo, Jo Dal Hwan, Lee Min Ki, Nam Tae Hoon, Han Min Yeop, and Han Sang Kyung.

    Meanwhile, the female lead Im Yoon Ah is active both in her acting and singing career. Aside from starring in “Big Mouth,” she also returned as a Girls Generation member. They recently released their seventh studio album “FOREVER 1.” She is also active in appearing on several variety shows to promote the album.

  8. 8 : tigerb Says:

    am checking the ratings if worth watching, maybe it is?

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