Groucho Marx

Character: Dr. Hugo Z. Hackenbush

Chico Marx

Character: Tony

Harpo Marx

Character: Stuffy

Allan Jones

Character: Gil Stewart

Maureen O'Sullivan

Character: Judy Standish

Margaret Dumont

Character: Emily Upjohn

Sig Ruman

Character: Dr. Leopold X. Steinberg

Leonard Ceeley

Character: Whitmore

Douglass Dumbrille

Character: Morgan

Esther Muir

Character: 'Flo' Marlowe

Robert Middlemass

Character: Sheriff

Vivien Fay

Character: Specialty Dancer

Ivie Anderson

Character: Specialty Singer

Gino Corrado

Character: Man Boarding Bus (uncredited)

Bess Flowers

Character: Racetrack Spectator (uncredited)

Bert Moorhouse

Character: Racetrack Spectator (uncredited)

Frank O'Connor

Character: Racetrack Guard (uncredited)

Carole Landis

Character: Party Guest (uncredited)

Etta Moten

Character: Black Singer (uncredited)

Dorothy Dandridge

Character: Singer (uncredited)

Byron Foulger

Character: Racetrack Spectator (uncredited)