David Krumholtz (born May 15, 1978) 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.

Early life
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 poor” Jewish family. His paternal grandparents had emigrated from Poland, and his mother moved from Hungary to the U.S. in 1956.