Premise: Gong Ji-chul ( ; born July 10 , 1979 ) , better known by his stage name Gong Yoo , is a South Korean actor . He is best known for his roles in television dramas The 1st Shop of Coffee Prince ( 2007 ) and Guardian : The Lonely and Great God ( 2016-2017 ) , and the films Silenced ( 2011 ) , The Age of Shadows ( 2016 ) , and Train to Busan ( 2016 ) . A stage name , also called a screen name , is a pseudonym used by performers and entertainers such as actors , comedians , and musicians .
Hypothesis: Gong Yoo is best known by his pseudonym Gong Yoo.
Label: ENTAILMENT