The Great Rupert

Jimmy Durante

as Mr. Louie Amendola

Terry Moore

as Rosalinda Amendola

Tom Drake

as Peter 'Pete' Dingle

Frank Orth

as Mr. Frank Dingle

Sara Haden

as Mrs.Katie Dingle

Queenie Smith

as Mrs. Amendola

Chick Chandler

as Phil Davis

Jimmy Conlin

as Joe Mahoney

Rupert

as Himself the Squirrel

Hugh Sanders

as Mulligan

Don Beddoe

as Mr. Haggerty (as Donald T. Beddoe)

Frank Cady

as Mr. Taney - Tax Investigator

Candy Candido

as Molineri - Florist

Clancy Cooper

as Police Lt. Saunders

Harold Goodwin

as Callahan - F.B.I. Man

Lester Dorr

as Eddie, the Bartender (uncredited)

Kenner G. Kemp

as Passerby in Park (uncredited)

Frank Marlowe

as Dave the Mailman (uncredited)

Torben Meyer

as Mr. Petrushka the Baker (uncredited)

Ralph Montgomery

as Fireman (uncredited)

Irving Pichel

as Puzzled Pedestrian (uncredited)

Harry Strang

as Fire Chief (uncredited)