Robert Cummings

Character: George Petty, aka Andrew 'Andy' Tapp

Joan Caulfield

Character: Prof. Victoria Braymore

Elsa Lanchester

Character: Dr. Crutcher

Melville Cooper

Character: Beardsley (Petty's butler, aka Uncle Ben)

Audrey Long

Character: Mrs. Connie Manton Dezlow

Mary Wickes

Character: Prof. Whitman

Frank Orth

Character: Moody (process server)

John Ridgely

Character: Patrolman

Dorothy Abbott

Character: December Petty Girl (uncredited)

Gino Corrado

Character: Brush and Easel Waiter (uncredited)

Pat Flaherty

Character: Policeman #2 (uncredited)

James Griffith

Character: Royal Roof Orchestra Leader (uncredited)

Tippi Hedren

Character: Ice Box Petty Girl (uncredited)

Movita

Character: Carmelita Moray (uncredited)

Ray Teal

Character: Policeman #1 (uncredited)

Ian Wolfe

Character: President Webb (uncredited)

Lyn Thomas

Character: Patti McKenzie (uncredited)

Jean Spangler

Character: Nightclub Patron (uncredited)