For the Loser

Kim Bum-suk

Detective

Moon Woo-jin

Son Jun-yeong

Yeo Moo-yeong

Yoon Nam-gi

Jung Chae-won

Jo Min-geun Mom

Lee Eun-ju

Son Jun-yeong Mom

Bae Bo-ram

Nurse

Jeon Jun-woo

Lawyer Park

Shin Soo-Hyun

Neighbor

Ku Hye-ryeong

Housekeeper

Kim Han-gyeol

Male Nurse