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 Kee-ryung

as Supermarket Employee

Heo Yoo-ri

as Korean Market Owner's Wife

Kim Min-kyung

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

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

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