أخي المزعج

조정석

Cho Doo-sik

도경수

Ko Doo-young

박신혜

Lee Soo-hyun

김강현

Dae-chang

지대한

Director of the National Athletes

임철형

Man at Clothing Store

이도연

Woman at the Club

Lee Yeon-su

Doo-sik's Mother

정재진

Supermarket Owner

구혜령

Employee of Welfare Section

이상훈

Employee of Welfare Section

Son Mi-hee

Nurse

배성재

Caster

정지훈

Young Doo-young

Kwon Beom-taek

Janitor

송용식

Dealer