Groucho Marx
Role: Attorney J. Cheever Loophole
Chico Marx
Role: Antonio Pirelli
Kenny Baker
Role: Jeff Wilson
Florence Rice
Role: Julie Randall
Eve Arden
Role: Peerless Pauline
Margaret Dumont
Role: Mrs. Suzanna Dukesbury
Nat Pendleton
Role: Goliath
James Burke
Role: John Carter
Jerry Maren
Role: Little Professor Atom (as Jerry Marenghi)
Barnett Parker
Role: Whitcomb
Irving Bacon
Role: Telegraph Clerk (uncredited)
Willie Best
Role: Redcap (uncredited)
Frank Orth
Role: Chef in Diner (uncredited)
John Binns
Role: Old Man (uncredited)
Henry Blair
Role: Undetermined Role (uncredited)
George Bookasta
Role: Member of Quarttete (uncredited)
James Conaty
Role: Party Guest (uncredited)
Frank Darien
Role: Telegrapher (uncredited)
Dudley Dickerson
Role: Singer / Dancer - 'Swingali' (uncredited)
Betsy Gay
Role: Circus Midget (uncredited)
Charles Gemora
Role: Gibraltar (uncredited)
John George
Role: Man Leaving Diner (uncredited)
Bobby Hale
Role: Train Passenger (uncredited)
Harry Hayden
Role: Conductor (uncredited)
Shep Houghton
Role: Circus Patron (uncredited)
Payne B. Johnson
Role: Boy at Circus (uncredited)
Carl M. Leviness
Role: Club Car Train Passenger (uncredited)
Buck Mack
Role: Checkers Player (uncredited)
Murdock MacQuarrie
Role: Attendant (uncredited)
Matt McHugh
Role: Cabbie (uncredited)
Edmund Mortimer
Role: Governor (uncredited)
Forbes Murray
Role: Captain (uncredited)
Emory Parnell
Role: Ringmaster (uncredited)
Lillian Randolph
Role: Black Woman - 'Swingali' (uncredited)
Larry Steers
Role: Party Guest (uncredited)
Fred Walburn
Role: Undetermined Role (uncredited)
Robert Winkler
Role: Undetermined Role (uncredited)
Hazel Dohlman
Role: Party Guest (uncredited)
Stuart Hall
Role: Circus Patron (uncredited)