Ryoo Seung-bumYoon Seok-woo Go Joon-heeKim Yoo-mi / Weathercaster Park Hae-ilRU-4 / In-myoung (voice) Kim Kang-wooRobot Repairman Park Do-won Jin Ji-heeYoung Park Min-seo John D. KimFormer NASA Researcher Don LeeHigh School Zombie Kim Gyu-riBodhisattva Hye-joo Yoon Se-aMin-seo's Mother Kim Seo-hyungRobot Scientist Min Yoo-ni Song Young-changCo. President Kang Kim Roi-haSeok-woo's Father Lee Kan-heeSeok-woo's Mother Hwang Hyo-eunSeok-woo's Sister Kim Kyung-ikAD Notebook Moderator Jung Jae-jinSpiritual Leader Choe Dae-HunSeg. Heavenly Creature - Monk Cho Hwa-sungArt Direction Kang So-yeongProduction Design Cho Sang-yunDirector Of Photography Ha Sung-minDirector Of Photography Kim Ji-yongDirector Of Photography Kwak Tae-yongSpecial Effects Makeup Artist Hwang Hyo-kyunSpecial Effects Makeup Artist Im Dae-jiProduction Sound Mixer Lee Chung-gyuFoley Artist Choi Tae-youngSound Re-Recording Mixer Romain BigorgneSound Effects Editor Park Yong-kiFoley Recordist Lim Jung-hoonVisual Effects Jung Do-ahnSpecial Effects Supervisor Jung Sung-jinVisual Effects Supervisor 
