Groucho Marx as Professor Wagstaff

Harpo Marx as Pinky

Chico Marx as Baravelli

Zeppo Marx as Frank Wagstaff

Thelma Todd as Connie Bailey

David Landau as Jennings

Bobby Barber as Speakeasy Patron (uncredited)

Reginald Barlow as Retiring Collage President (uncredited)

Vince Barnett as Speakeasy Patron (uncredited)

Sheila Bromley as Wagstaff's Receptionist (uncredited)

E.H. Calvert as Professor in Wagstaff's Study (uncredited)

Edgar Dearing as Speakeasy Bartender (uncredited)

Robert Greig as Biology Professor (uncredited)

Theresa Harris as Laura (uncredited)

Edward LeSaint as Professor in Wagstaff's Study (uncredited)

Florine McKinney as Peggy Carrington (uncredited)

Nat Pendleton as MacHardie (uncredited)

James Pierce as Ed Mullen (uncredited)

Frank Rice as Doorman at Speakeasy (uncredited)

Syd Saylor as Speakeasy Patron at Slot Machine (uncredited)

Arthur Sheekman as Typing Sportswriter (uncredited)

Ben Taggart as Police Officer (uncredited)

Phil Tead as Football Broadcaster (uncredited)