The Great Rupert

Jimmy Durante Mr. Louie Amendola

Terry Moore Rosalinda Amendola

Tom Drake Peter 'Pete' Dingle

Frank Orth Mr. Frank Dingle

Sara Haden Mrs. Katie Dingle

Queenie Smith Mrs. Amendola

Chick Chandler Phil Davis

Jimmy Conlin Joe Mahoney

Rupert Himself the Squirrel

Hugh Sanders Mulligan

Don Beddoe Mr. Haggerty

Frank Cady Mr. Taney - Tax Investigator

Candy Candido Molineri - Florist

Clancy Cooper Police Lt. Saunders

Harold Goodwin Callahan - F.B.I. Man

Lester Dorr Eddie, the Bartender (uncredited)

Kenner G. Kemp Passerby in Park (uncredited)

Frank Marlowe Dave the Mailman (uncredited)

Torben Meyer Mr. Petrushka the Baker (uncredited)

Ralph Montgomery Fireman (uncredited)