 Groucho MarxProfessor Wagstaff | Professor Wagstaff |
 Harpo MarxPinky | Pinky |
 Chico MarxBaravelli | Baravelli |
 Zeppo MarxFrank Wagstaff | Frank Wagstaff |
 Thelma ToddConnie Bailey | Connie Bailey |
 David LandauJennings | Jennings |
 Bobby BarberSpeakeasy Patron (uncredited) | Speakeasy Patron (uncredited) |
 Reginald BarlowRetiring Collage President (uncredited) | Retiring Collage President (uncredited) |
 Vince BarnettSpeakeasy Patron (uncredited) | Speakeasy Patron (uncredited) |
 Sheila BromleyWagstaff's Receptionist (uncredited) | Wagstaff's Receptionist (uncredited) |
 E.H. CalvertProfessor in Wagstaff's Study (uncredited) | Professor in Wagstaff's Study (uncredited) |
 Edgar DearingSpeakeasy Bartender (uncredited) | Speakeasy Bartender (uncredited) |
 Robert GreigBiology Professor (uncredited) | Biology Professor (uncredited) |
 Theresa HarrisLaura (uncredited) | Laura (uncredited) |
 Edward LeSaintProfessor in Wagstaff's Study (uncredited) | Professor in Wagstaff's Study (uncredited) |
 Florine McKinneyPeggy Carrington (uncredited) | Peggy Carrington (uncredited) |
 Nat PendletonMacHardie (uncredited) | MacHardie (uncredited) |
 James PierceEd Mullen (uncredited) | Ed Mullen (uncredited) |
 Frank RiceDoorman at Speakeasy (uncredited) | Doorman at Speakeasy (uncredited) |
 Syd SaylorSpeakeasy Patron at Slot Machine (uncredited) | Speakeasy Patron at Slot Machine (uncredited) |
 Arthur SheekmanTyping Sportswriter (uncredited) | Typing Sportswriter (uncredited) |
 Ben TaggartPolice Officer (uncredited) | Police Officer (uncredited) |
 Phil TeadFootball Broadcaster (uncredited) | Football Broadcaster (uncredited) |
