“Big Mouth” Kdrama 2022 | Cast | Synopsis | Preview & more

Overview: “Big Mouth” Kdrama (also known as “Big Mouse”) is an MBC original drama series that released on 29 July 2022. It will tell the story of lawyer Park Chang Ho who is popularly known as ‘Big Mouth’. He somehow gets involved in a murder case and suspected as the genius swindler ‘Big Mouse’. “Big Mouth” stars Lee Jong Suk, Im Yoon Ah, Kim Joo Heon, Ok Ja Yeon and Yang Kyung Won in the main cast. It is available to watch online on streaming platform Disney+ Hotstar*.

Big Mouth Korean drama 2022 poster

Table of Contents

  • Synopsis
  • Genre
  • Cast
  • Air Time & Schedule
  • Episodes & Ratings
  • Still Cuts
  • Notes & Facts
  • Where To Watch Online?
  • Trailers & Clips


“Big Mouth” Korean drama tells the story of a third rate lawyer, Park Chang Ho (Lee Jong Suk). His win percentage is only 10%, still he always talks great about himself. Also, when it comes to work he is often a failure. Due to this habit of Park Chang Ho, he is popularly known as ‘Big Mouth’.

One day his nickname ‘Big Mouth’ gets confused with the name of a genius conman, ‘Big Mouse’. As a result of it, Park Chang Ho gets associated with a murder case related to him.

Now he is forced to go deep into the crime case and expose the bad deeds of powerful, greedy people in order to protect his family.

Park Chang Ho’s wife Go Mi Ho (Im Yoon Ah)  is a nurse. She loves her husband very much and is always ready to help to support him. Go Mi Ho helped Park Chang Ho to become a lawyer. Her father works as an office manager at Park Chang Ho’s office.

Although, he never gets paid on time. As soon as Go Mi Ho hears that her husband is being associated with a conman, she decides to clear his name herself.


Legal, Mystery, Thriller, Crime, Romance

Main Cast & Characters

  • Lee Jong Suk as Park Chang Ho
  • Im Yoon Ah as Go Mi Ho
  • Kim Joo Heon as Choi Do Ha (Gucheon mayor)
  • Ok Ja Yeon as Hyun Joo Hee (Do Ha’s wife and Hospital director)
  • Yang Kyung Won as Gong Ji Hoon

Supporting Cast

  • Oh Eui Shik as Kim Soon Tae (Park Chang Hi’s friend and lawyer)
  • Kim Jung Hyun as Jung Chae Bong
  • Lee Yoo Joon as Han Jae Ho
  • Oh Ryoong as Lee Du Geun
  • Yoon Seok Hyun as Cha Seung Tae
  • Park Hoon as Seo Jae Yong
  • Kim Gyu Seon as Ashley Kim
  • Jang Hyuk Jin as Choi Jong Rak
  • Kim Sun Hwa as Park Mi Young
  • Yang Hyung Wook as Novak
  • Park Se Hyun as Jang Hee Joo
  • Jung Jae Sung as Park Yoon Gab
  • Lee Gi Young as Go Gi Kwang
  • Kim Dong Won as Gan Soo Cheol
  • Kwak Dong Yeon as Jerry (cameo appearance)

Air Time & Schedule

New Episodes every Friday and Saturday at  9:50 PM KST.

Episodes & Ratings

Korean drama “Big Mouth” will have a total of 16 episodes.

Still Cuts

Kdrama Big mouth Lee Dong Wook
Im Yoona married, wedding dress in Big Mouth
Yang Kyung Won as Gong Ji Hoon in Big Mouth series
Kwak Dong Yeon as Jerry cameo guest appearance in Big Mouth
Yoon Ah as nurse in Big mouth
Ok Ja Yeon as Hyun Joo Hee (Do Ha's wife and Hospital director) big mouth
Big Mouth Kim Joo Heon as Choi Do Ha (Gucheon mayor)
Yoona strips shirt wearing in big mouth series
Lee Dong Wook in jail for new 2022 drama big mouth
Lee Dong Wook kdrama big mouth
Park Chang Ho Korean drama Big Mouth
Lee Dong Wook athletes race in drama
Big Mouth Go Mi Ho
Antagonist big mouth

Notes & Facts

  • Lee Jong Suk earlier starred in Korean drama “Romance Is A Bonus Book” (2019).
  • Im Yoon Ah earlier starred in Korean drama “A Year End Medley: Extended Version” (2022).
  • Kim Joo Heon earlier appeared in Korean drama “Soundtrack #1” (2020).
  • Ok Ja Yeon earlier starred in Korean drama “Mine” (2021).
  • Yang Kyung Won earlier appeared in Korean drama “One Ordinary Day” (2021).
  • Director: Oh Choong Hwan
  • Scriptwriter: Jang Young Chul, Jung Kyung Soon

Where To Watch Online?

You can watch “Big Mouth” on Disney+ Hotstar here.

Trailers & Clips

Episodes 1, 2, 3,……., Highlights

*Drama is subject to regional availability.