Question: What is the stage name for actor who co-stared the 2016 film "Train to Busan" with Jung Yu-mi and Ma Dong-seok?
Sentence (from "Train to Busan"): Train to Busan () is a 2016 South Korean zombie apocalypse action thriller film directed by Yeon Sang-ho and starring Gong Yoo, Jung Yu-mi, and Ma Dong-seok.
Relevant evidence: Yes