Question: The actor that played a university professor in "March", appeared in what courtroom thriller film directed by Sohn Young-sung?
Sentence (from "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".
Relevant evidence: Yes