Jang Keun-suk
Jung Jin-young and Jang Keun-suk were costars in the films "The Happy Life" (2007) and "The Case of Itaewon Homicide" (2009). Im Yoon-ah and Yoo Hye-ri were costars in the television series "You are My Destiny" (2008) and "Cinderella Man" (2009).