Ha Jung-woo Sohn Kee-chung Yim Si-wan Seo Yoon-bok Bae Sung-woo Nam Seung-ryong Kim Sang-ho Baek Nam-hyeon Park Eun-bin Ok-rim Park Hyo-ju Yoon-seo Kim Jung-Chul Young Seo Yoon-bok Lee Seung-joon Kim Gyo Sin's disciple Koo Ja-geon Go Jeong's marathon team member Park Ki-ryung Supermarket employee Heo Yoo-ri Korean market owner's wife Kim Min-kyung Joey Albright Journalist Garrison Farquharson-Keener US customs officer John D. Michaels Reporter Kevin Dockry US customs officer Carson Allen Reporter Andreas Fronk Drill instructor Paul Battle American reporter Ryu Hae-jun Athleti's club player Nam Joong Gyu Rachel J. Goodgion Marathon Attendee Michael Wayne Foster American Sergeant Morgan Bradley Smedley Ron Roggé Harris