Jeffrey Lynn
— Peter DeHaven
Jane Wyman
— Joan Shotesbury
Edward Everett Horton
— Professor Shotesbury
Herbert Anderson
— George Appleby
Marguerite Chapman
— Christine Lunceford
Craig Stevens
— Robert Struck
David Bruce
— Jimmy Barbour
Willie Best
— Willie
Ivan F. Simpson
— Dean Claxton
Tod Andrews
— Bill
William Hopper
— Terrence Abbott
Natalie Schafer
— Mrs. Lunceford
Charles Halton
— Professor Moggs
Sidney Bracey
— Barrett
Wade Boteler
— Inspector Deming
Frank Ferguson
— Professor McAuley (uncredited)