Ha Gi-ho Director, Screenwriter Han Ye-ri Jung Si-Hoo Actor Yoon Kye-sang Yoo Jung-Hoon Actor Park Byeong-eun Joon-suk Actor Park Hyo-joo Joo-yun Actor Jo Bok-rae Deok-rae Actor Jung Soo-young Teacher Kim Actor Kim Chang-wan studio part time worker Actor Kim Eui-sung Doctor Actor Kim Jae-hwa Dol-Sook Actor Lee Jee-hoon Writer Hwang Actor Kong Sang-a Han Sang-yeon Actor Kim Joon-bum Home room teacher , Prayer Actor Jin Seon-kyu Coffee man Actor Han Ji-eun Pictorial model 1 Actor Park Sang-hoon Ball park cleaner Actor Kim Seo-won Rescue worker Actor Kang Moon-kyung Wedding ceremony officiator voice Actor Cha Soo-rin Hairstylist, Home shopping PD Actor Han Sang-bum Producer Lee Jin Film Editing Yu In-su Producer Back Yoon-seuk Cinematographer Kim In-seok Cinematographer Lee Je-woo Lighting Choi Ki-sung Film Editor Mowg Music Kim Na-rae Music