Jo Dal-hwan plays Lee Ho-yeon, a salesman from a pharmaceutical company who is very people-shy.
조달환
as Lee Ho-yeon
우혜림
as Kim Seo-yeon
정영주
as Mom
김찬이
as Team leader Kim
이지현
as Deputy head of department Kang
Son Ji-yoon
as Seo Ji-hye
Pierce Conran
as Foreign jogger
Song Dong-hwan
as Song
Moon Yoo-seong
as Ramyun Place Worker 1
홍의준
as Construction company
허남준
as Joo
신구
as Shin Jung-hee