Leo DeLyon (born April 27, 1925, in Paterson, New Jersey) is an American comic actor. His voice roles for Hanna-Barbera included:
- Brain and Spook on Top Cat
- Supporting voices in The Flintstones episode "The Beauty Contest"
- Supporting voices on Smurfs
DeLyon performed on stage as pianist and vocal entertainer, and was musical director for several artists such as Sandler and Young. He worked on Al Kooper's first record. DeLyon recorded 45s, 78s and LPs using multi-tracking and his voice as instruments, long before Bobby McFerrin, as early as 1951. He recorded an album of Jewish humor in the 1950s in England, which led to a world tour and his classic LP Leo's Here.
DeLyon was a voice actor on Top Cat, Smurfs, The Flintstones and other animated shows. He also appeared on live-action TV shows such as Bewitched, My Mother the Car, The Jack Benny Program, Arrest and Trial, The Steve Allen Show, Cavalcade of Stars and The Milton Berle Show. He co-starred with Bob Haymes and Dorothy Loudon in the short-lived DuMont Television Network sitcom It's a Business (March–May 1952). He worked on Mel Blanc's "Superfun" radio series in the 1960s. Currently retired, DeLyon plays at rest homes and facilities in the Reseda/North Hollywood area.
- Leo DeLyon at the Internet Movie Database