Shep Henderson

James Stewart

Gil Holroyd

Kim Novak

Nicky Holroyd

Jack Lemmon

Sidney Redlitch

Ernie Kovacs

Bianca de Passe

Hermione Gingold

Aunt Queenie Holroyd

Elsa Lanchester

Merle Kittridge

Janice Rule

French Singer at the Zodiac Club

Philippe Clay

Tina

Bek Nelson

Andy White

Howard McNear

Zodiac Club Proprietor (uncredited)

Wolfe Barzell

Mover (uncredited)

Fred Aldrich

Exterminator (uncredited)

Joe Barry

Club Patron (uncredited)

Leon Alton

Betty - Merle's Maid (uncredited)

Gail Bonney

Herb Store Owner (uncredited)

Monty Ash

Club Patron (uncredited)

Alex Ball

Cab Driver (uncredited)

Don Brodie

Waldo (uncredited)

James Lanphier

Elevator Operator

Ollie O'Toole

Cab Driver (uncredited)

John Truax

Club Patron (uncredited)

Robert Haines

Club Patron (uncredited)

Perk Lazelle

Gillian's Customer (uncredited)

Ted Mapes

Club Patron (uncredited)

Hans Moebus