Ryoo Seung-bum
Yoon Seok-woo
Acting
Go Joon-hee
Kim Yoo-mi / Weathercaster
Acting
Park Hae-il
RU-4 / In-myoung (voice)
Acting
Kim Kang-woo
Robot Repairman Park Do-won
Acting
Bae Doona
Park Min-seo
Acting
Bong Joon-ho
Lee Joon-ho
Directing
Jin Ji-hee
Young Park Min-seo
Acting
John D. Kim
Former NASA Researcher
Acting
Ma Dong-seok
High School Zombie
Acting
Kim Gyu-ri
Bodhisattva Hye-joo
Acting
Jo Yoon-hee
Ji-eun
Acting
Jung Woo
Joong-dong
Acting
Kim Moo-yul
Ji-ho
Acting
Yoon Se-a
Min-seo's Mother
Acting
Song Sae-byuk
Hwan
Acting
Lee Seung-joon
Dad
Acting
Kim Seo-hyung
Robot Scientist Min Yoo-ni
Acting
Song Young-chang
Co. President Kang
Acting
Choi Gwi-hwa
Removal Team
Acting
Ryu Seung-su
Announcer
Acting
Lee Young-eun
Announcer
Acting
Kim Roi-ha
Seok-woo's Father
Acting
Lee Kan-hee
Seok-woo's Mother
Acting
Hwang Hyo-eun
Seok-woo's Sister
Acting
Yoon Je-moon
Joo Je-moon
Acting
Kim Su-nam
Monk
Acting
Choi Deok-moon
Chief
Acting
Kim Kyung-ik
AD Notebook Moderator
Acting
Lee Bong-gyu
Senior Monk
Acting
Jung Jae-jin
Spiritual Leader
Acting
Choe Dae-Hun
Seg. Heavenly Creature - Monk
Acting