조승우
— Choi Dong-woon
Yang Dong-geun
— Seon Dong-yeol
최정원
— Kim Seo-hyung
Ma Dong-Seok
— Park Man-soo
조진웅
— Kim Yong-chul
손병호
— Kim Eung-ryong
Hyun Jyu-ni
— Min-kyung
김영민
— Kang Sung-tae
김민재
— Bong-soo
공정환
— Yoo Doo-yeol
최민철
— Kim Il-kwon
김영훈
— Jang Chae-geun
Park Seo-jun
— Chil-goo
최일화
— Hyun-soo's father
김병옥
— Chief Secretary (cameo)
이동진
— Lotte Park Yeong-tae
Lee Sun-jin
— Man-soo's wife
이해우
— Kang Hyeon-soo
Kim Dong-hee
— Jeong Yeong-gi
Chan-Hyeong Jo
— Han Moon-yeon
Dan Åsenlund
— Canadian Play-By-Play Commentator
Dennis Battistella Jr.
— Canadian Baseball Player
Oh Jung-se
— Sports commentator
Kim Gwang-hyeon
— Kyungnam High School Coach
Lasse Lindh
— Canadian color commentator
이도경
— Seong Gi-yeong