Park Hee-joon Director, Screenwriter Jung Joon Jang Dae-Seong Actor Hong Kyeong-in Im Man-goo Actor Yeo Hyun-soo Kim Hae-sam Actor Lee Won-jong Coach Wang Actor Kim Sa-rang Sa-rang Actor Kim Dong-seok Kyeong-ho Actor Lee Jae-yong Mr. Choe Actor Baek Gyeong-suk Producer Lee Chang-yeol Screenwriter