James Stewart

Shep Henderson

Kim Novak

Gillian Holroyd

Jack Lemmon

Nicky Holroyd

Ernie Kovacs

Sidney Redlitch

Hermione Gingold

Bianca de Passe

Elsa Lanchester

Aunt Queenie Holroyd

Janice Rule

Merle Kittridge

Philippe Clay

French Singer at the Zodiac Club

Bek Nelson

Tina

Howard McNear

Andy White

Fred Aldrich

Mover (uncredited)

Leon Alton

Club Patron (uncredited)

Monty Ash

Herb Store Owner (uncredited)

Alex Ball

Club Patron (uncredited)

Joe Barry

Exterminator (uncredited)

Wolfe Barzell

Zodiac Club Proprietor (uncredited)

Gail Bonney

Betty - Merle's Maid (uncredited)

Don Brodie

Cab Driver (uncredited)

Robert Haines

Club Patron (uncredited)

James Lanphier

Waldo (uncredited)

Perk Lazelle

Club Patron (uncredited)

Ted Mapes

Gillian's Customer (uncredited)

Hans Moebus

Club Patron (uncredited)

Ollie O'Toole

Elevator Operator (uncredited)

John Truax

Cab Driver (uncredited)