James Stewart

Character: Shep Henderson

Kim Novak

Character: Gillian Holroyd

Jack Lemmon

Character: Nicky Holroyd

Ernie Kovacs

Character: Sidney Redlitch

Hermione Gingold

Character: Bianca de Passe

Elsa Lanchester

Character: Aunt Queenie Holroyd

Janice Rule

Character: Merle Kittridge

Philippe Clay

Character: French Singer at the Zodiac Club

Bek Nelson

Character: Tina

Howard McNear

Character: Andy White

Fred Aldrich

Character: Mover (uncredited)

Leon Alton

Character: Club Patron (uncredited)

Monty Ash

Character: Herb Store Owner (uncredited)

Alex Ball

Character: Club Patron (uncredited)

Joe Barry

Character: Exterminator (uncredited)

Wolfe Barzell

Character: Zodiac Club Proprietor (uncredited)

Gail Bonney

Character: Betty - Merle's Maid (uncredited)

Don Brodie

Character: Cab Driver (uncredited)

Robert Haines

Character: Club Patron (uncredited)

James Lanphier

Character: Waldo (uncredited)

Perk Lazelle

Character: Club Patron (uncredited)

Ted Mapes

Character: Gillian's Customer (uncredited)

Hans Moebus

Character: Club Patron (uncredited)

Ollie O'Toole

Character: Elevator Operator (uncredited)

John Truax

Character: Cab Driver (uncredited)