What's Up?

as

Jang Jae-Hun

as

Sun Woo-Yeong

as

Park Tae-Yi

as

Oh Doo-Ri

as

Kim Byung-Gun

as

Ha Do-Sung

as

Eun Chae-young

as

Lee Soo-bin

as

Oh Doo-ri (young)

as

Jang Jae-heon's mother

as

Professor Yang Soo-jung

as

Director

as

Writer