Groucho Marx

Character: Professor Wagstaff

Harpo Marx

Character: Pinky

Chico Marx

Character: Baravelli

Zeppo Marx

Character: Frank Wagstaff

Thelma Todd

Character: Connie Bailey

David Landau

Character: Jennings

Bobby Barber

Character: Speakeasy Patron (uncredited)

Reginald Barlow

Character: Retiring Collage President (uncredited)

Vince Barnett

Character: Speakeasy Patron (uncredited)

Sheila Bromley

Character: Wagstaff's Receptionist (uncredited)

E.H. Calvert

Character: Professor in Wagstaff's Study (uncredited)

Edgar Dearing

Character: Speakeasy Bartender (uncredited)

Robert Greig

Character: Biology Professor (uncredited)

Theresa Harris

Character: Laura (uncredited)

Edward LeSaint

Character: Professor in Wagstaff's Study (uncredited)

Florine McKinney

Character: Peggy Carrington (uncredited)

Nat Pendleton

Character: MacHardie (uncredited)

James Pierce

Character: Ed Mullen (uncredited)

Frank Rice

Character: Doorman at Speakeasy (uncredited)

Syd Saylor

Character: Speakeasy Patron at Slot Machine (uncredited)

Arthur Sheekman

Character: Typing Sportswriter (uncredited)

Ben Taggart

Character: Police Officer (uncredited)

Phil Tead

Character: Football Broadcaster (uncredited)