Hwang Jung-min

Character: Superman / Lee Hyun-suk

Gianna Jun

Character: Song Soo-jung

Jin Ji-hee

Character: Hee-jung / Lee Ji-young

Do Yong-gu

Character: Director

Sun Woo-sun

Character: Writer Kim

Kim Jae-rok

Character: Bruce Lee (uncredited)

Park Yong-su

Character: Ph.D Kim (uncredited)

Lee Sang-yeob

Character: Soo-jung's Male Friend (uncredited)

Woo Ki-hong

Character: Police Officer Ha (uncredited)

Jo Hee-bong

Character: Audio Engineer (uncredited)

Jeon Su-ji

Character: Parking Lot Woman (uncredited)

Kang Ae-sim

Character: Red Cross Staff (uncredited)

Park Hyun-young

Character: Nurse (uncredited)

Park Hye-jin

Character: Old Woman