David Krumholtz. Actor: Oppenheimer. David Krumholtz is an American actor and comedian. He played Mr. Universe in Serenity, Charlie Eppes in the CBS drama series Numb3rs, and starred in the Harold & Kumar and The Santa Clause film franchises. Krumholtz was born in Queens, New York City. He is the son of Michael, a postal worker, and Judy Krumholtz, a dental assistant. He grew up in a "very working-class, almost...