Del Moore was a comedian, a television and movie actor, and a radio announcer.
Born Marion Delbridge Moore in Pensacola, Florida, he began his career in radio before moving to television. In 1952, he appeared in the first of several So You Want To . . . Warner Bros. comedy shorts with George O'Hanlon. He co-starred in the early television comedy Life with Elizabeth with Betty White. A good friend of Jack Webb, with whom he had served in the United States Army Air Forces during World War II, Moore appeared in many episodes of Dragnet and Adam-12. He was a regular on the series Bachelor Father playing the annoying next door neighbor Cal Mitchell. For several years in the late 1950s he hosted a daily children's program opposite Willy the Wolf on KTTV Channel 11 in Los Angeles.
Moore played supporting roles in several Jerry Lewis films, including The Big Mouth and The Patsy. He made his feature film debut in Lewis' Cinderfella in 1960 and was the university president in 1963's The Nutty Professor. He was also in the 1967 teen film Catalina Caper, which later appeared as an "experiment" in a 1990 episode of Mystery Science Theater 3000. In 1966 appeared in episodes 39 and 40 of Batman.