Question: Who was the supporting actor in Running Man?
Sentence (from "Oh Jung-se"): Oh began his career in theater, and has since appeared in many onscreen supporting roles over the years, notably in "Petty Romance" (2010), "Couples" (2011), "As One" (2012), "A Millionaire On the Run" (2012), and "Running Man" (2013).
Relevant evidence: Yes