Ha Jung-woo as Sohn Kee-chung

Yim Si-wan as Seo Yoon-bok

Bae Sung-woo as Nam Seung-ryong

Kim Sang-ho as Baek Nam-hyeon

Park Eun-bin as Ok-rim

Park Hyo-ju as Yoon-seo

Kim Jung-chul as Young Seo Yoon-bok

Lee Seung-joon as Kim Gyo Sin's Disciple

Koo Ja-geon as Go Jeong's Marathon Team Member

Park Ki-ryung as Supermarket Employee

Heo Yoo-ri as Korean Market Owner's Wife

Kim Min-kyung as

Joey Albright as Journalist

Garrison Farquharson-Keener as US Customs Officer

John D. Michaels as Reporter

Carson Allen as Reporter

Andreas Fronk as Drill Instructor

Paul Battle as American Reporter

Ryu Hae-jun as Athleti's Club Player

Nam Joong-gyu as

Rachel J. Goodgion as Marathon Attendee

Alex Romashov as Geoffrey

Michael Wayne Foster as American Sergeant

Morgan Bradley as Smedley

Ron Roggé as Harris

Kevin Dockry as US Customs Officer

Lucas Linehan as Jacob

Mickey O'Sullivan as Cold Noodle

Ron Kelly as General Hodge

Jim O'Hare as Commentator

Kevin Dee as Policeman

Daniel Agar as Marathon Runner

Cory Boughton as Announcer

Shane Leckenby as Group A Runner 4

Xavier Gouault as Cameraman

Paul Esmonde as Marathon Runner

Shane Palmer as Bellboy

James Ao as Marathon Runner

Caleb Muller as Taylor

Brendan Zoch as

Brad Curtin as Governor Stainback

Glenn Roche as Runner #1946

Tim Grimes as Virtanen

Kim Seo-hyeon as Undertaker

Cheon Jae-hong as Reporter

Park Ki-seon as Boston resident