A Day at the Races

Groucho Marx

Dr. Hugo Z. Hackenbush

Chico Marx

Tony

Harpo Marx

Stuffy

Allan Jones

Gil Stewart

Maureen O'Sullivan

Judy Standish

Margaret Dumont

Emily Upjohn

Sig Ruman

Dr. Leopold X. Steinberg

Leonard Ceeley

Whitmore

Douglass Dumbrille

Morgan

Esther Muir

'Flo' Marlowe

Sam Wood

Director

Irving Thalberg

Producer

Lawrence Weingarten

Producer