 Basil RathboneDr. George Sebastian / Dr. Langamann | Dr. George Sebastian / Dr. Langamann |
 Ellen DrewLinda Booth | Linda Booth |
 John HowardGil Sawyer | Gil Sawyer |
 Barbara Jo AllenLouise Watkins (as Barbara Allen [Vera Vague]) | Louise Watkins (as Barbara Allen [Vera Vague]) |
 Ralph MorganDr. Charles Downer | Dr. Charles Downer |
 Martin KosleckMaurice Gretz | Maurice Gretz |
 Kitty KellyWinnie | Winnie |
 Hugh O'ConnellLawrence Watkins | Lawrence Watkins |
 Henry VictorFurber (Uncredited) | Furber (Uncredited) |
 Wanda McKayGirl at Charity Bazaar (Uncredited) | Girl at Charity Bazaar (Uncredited) |
 James SeayIntern (Uncredited) | Intern (Uncredited) |
 William BenedictMickey Barnes (Uncredited) | Mickey Barnes (Uncredited) |
 George ChandlerElevator Operator (Uncredited) | Elevator Operator (Uncredited) |
 Edward EarleLibrarian (Uncredited) | Librarian (Uncredited) |
 Chuck HamiltonPolice Officer at Train Station (Uncredited) | Police Officer at Train Station (Uncredited) |
 Harry HaydenTicket Clerk (Uncredited) | Ticket Clerk (Uncredited) |
 Douglas KennedyHotel Clerk (Uncredited) | Hotel Clerk (Uncredited) |
| JJohn LaingIntern (Uncredited) | Intern (Uncredited) |
 Charles McAvoyOfficer Riley (Uncredited) | Officer Riley (Uncredited) |
 Howard M. MitchellButler (Uncredited) | Butler (Uncredited) |
 Ruth RogersWoman at Charity Bazaar (Uncredited) | Woman at Charity Bazaar (Uncredited) |
 Sheila RyanHostess at Charity Bazaar (Uncredited) | Hostess at Charity Bazaar (Uncredited) |
 Hugh SothernDr. Hatch (Uncredited) | Dr. Hatch (Uncredited) |
 Max WagnerCab Driver (Uncredited) | Cab Driver (Uncredited) |
