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)

Irving Pichel

Puzzled Pedestrian (uncredited)

Harry Strang

Fire Chief (uncredited)

Irving Pichel

Director

James O'Hanlon

Writer

Harry Crane

Writer

George Pal

Producer