Cheer Up, Mr. Lee is a 2019 South Korean comedy-drama film directed by Lee Gae-byok. The film stars Cha Seung-won, Um Chae-young, Park Hae-joon, Kim Hye-ok, Ahn Gil-kang, Jeon Hye-bin and Ryu Han-bi.br br Castbr Cha Seung-won as Chul-soobr Um Chae-young as Saet-byulbr Park Hae-joon as Young-soobr Kim Hye-ok as Saet-byul's grandmotherbr Ahn Gil-kang as Mr.