Kim Hwi-gyu

as Ghwa gyung-su

as Brother

as tinder man

as Hwi-gyu

as {A Sense of Humor} Seok Gu | {We're Family when We're Apart} [Love letter guy]

as Test Taker No.164

as Min-cheol

as Manager

as Sung-gu

as No. 173

as Motel customer

as [Library student]

as Ra Byeong-su (eps 1)

as Cha I Seul [Tae Seong's friend]

as Oh Doo Seok [Mgmt. junior]

as [Interviewer]