Leo De Lyon (born 1926) is an Americanvoice actor famous for his role as Spook and Brain in the cartoon Top Cat. In the mid- and late 1970s he performed on stage as pianist and vocal entertainer and was musical director for several artists s.a. Sandler and Young. 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 appeared at the London Palladium in 1956 with the Platters and Lonnie Donegan. His specialty on this show was singing and whistling two different tunes - notably the Farandole from Bizet's Arlesienne Suite - at the same time. In 1962, he did a character voice on a recording of a song written by Al Lerner for a young artist named David Lucas for Doris Day and husband Marty Melcher's Arwin Records. The song was performed by Pookie and Hippy of The Soupy Sales Show. Leo did a fabulous "Guttural" hook "Uga Uga Boola, Uga Boola Boola Uga". He also voiced Flunkey the baboon in Disney's 1967's Jungle Book.
He also recorded a 45 rpm release (date unknown; probably early 1960s) for Musicor (distributed by United Artists), label number 1001, under Leo DeLyon and the Musclemen: "Sick Manny's Gym" (written by Alan Kooper)/ "Plunkin" (written by Alan Kooper and Eric Krackow). The Musclemen included Al Kooper on guitar and Eric Krackow on bass.