Marie Wilson as Irma Peterson

Diana Lynn as Jane Stacy

Dean Martin as Steve Laird

Jerry Lewis as Seymour

John Lund as Al

Don DeFore as Richard Rhinelander

Hans Conried as Prof. Kropotkin

Kathryn Givney as Mrs. Rhinelander

Percy Helton as Mr. Clyde

Gloria Gordon as Mrs. O'Reilly

Ernö Verebes as Mr. Ubang

Margaret Field as Alice

Chester Conklin as Gypsy Tea Room Waiter (uncredited)

Nick Cravat as Mushie (uncredited)

Franklyn Farnum as Maitre D' (uncredited)

Bess Flowers as Gypsy Tea Room Diner (uncredited)