Ryoo Seung-bum
Yoon Seok-woo
Go Joon-hee
Kim Yoo-mi / Weathercaster
Park Hae-il
RU-4 / In-myoung (voice)
Kim Kang-woo
Robot Repairman Park Do-won
Bae Doona
Park Min-seo
Bong Joon Ho
Lee Joon-ho
Jin Ji-hee
Young Park Min-seo
John D. Kim
Former NASA Researcher
Don Lee
High School Zombie
Kim Gyu-ri
Bodhisattva Hye-joo
Jo Yoon-hee
Ji-eun
Jung Woo
Joong-dong
Kim Moo-yul
Ji-ho
Yoon Se-a
Min-seo's Mother
