In 1952, Ahn made his television debut on the Schlitz Playhouse, a series he would make three additional appearances on. Ahn would also be cast in four episodes of ABC's Adventures in Paradise, four episodes of the ABC/Warner Brothers crime drama Hawaiian Eye, and the CBS crime drama Hawaii Five-O. He made three appearances each on Crossroads, Bonanza, and M*A*S*H. He would also appear in two television movies.