Groucho Marx

as Attorney J. Cheever Loophole

Chico Marx

as Antonio Pirelli

Harpo Marx

as 'Punchy'

Kenny Baker

as Jeff Wilson

Florence Rice

as Julie Randall

Eve Arden

as Peerless Pauline

Margaret Dumont

as Mrs. Suzanna Dukesbury

Nat Pendleton

as Goliath

Fritz Feld

as Jardinet

James Burke

as John Carter

Jerry Maren

as Little Professor Atom (as Jerry Marenghi)

Barnett Parker

as Whitcomb

Irving Bacon

as Telegraph Clerk (uncredited)

Willie Best

as Redcap (uncredited)

Frank Orth

as Chef in Diner (uncredited)

John Binns

as Old Man (uncredited)

Henry Blair

as Undetermined Role (uncredited)

George Bookasta

as Member of Quarttete (uncredited)

James Conaty

as Party Guest (uncredited)

Frank Darien

as Telegrapher (uncredited)

Dudley Dickerson

as Singer / Dancer - 'Swingali' (uncredited)

Betsy Gay

as Circus Midget (uncredited)

Charles Gemora

as Gibraltar (uncredited)

John George

as Man Leaving Diner (uncredited)

Bobby Hale

as Train Passenger (uncredited)

Harry Hayden

as Conductor (uncredited)

Shep Houghton

as Circus Patron (uncredited)

Payne B. Johnson

as Boy at Circus (uncredited)

Carl M. Leviness

as Club Car Train Passenger (uncredited)

Buck Mack

as Checkers Player (uncredited)

Murdock MacQuarrie

as Attendant (uncredited)

Matt McHugh

as Cabbie (uncredited)

Edmund Mortimer

as Governor (uncredited)

Forbes Murray

as Captain (uncredited)

Emory Parnell

as Ringmaster (uncredited)

Lillian Randolph

as Black Woman - 'Swingali' (uncredited)

Larry Steers

as Party Guest (uncredited)

Fred Walburn

as Undetermined Role (uncredited)

Robert Winkler

as Undetermined Role (uncredited)

Hazel Dohlman

as Party Guest (uncredited)

Stuart Hall

as Circus Patron (uncredited)