The actor that played a university professor in "March", appeared in what courtroom thriller film directed by Sohn Young-sung?
Sung Dong-il:  He rose to fame as the comic, Jeolla dialect-speaking character "Red Socks" in the television drama "Eun-shil", though he later tried to fight typecasting by playing the son of a chaebol tycoon in "Love In 3 Colors" and a university professor in "March". Sung Dong-il:  Subsequently, he became one of Korean cinema's most reliable supporting actors, displaying his comic skills and easy charm in films such as "Take Off", "Foxy Festival", "Children...", "The Suicide Forecast", and "The Client".
i don't know