Walter Matthau

Paul Manning

Inger Stevens

Ruth Manning

Sue Ane Langdon

Irma Johnson

Jackie Russell

Jackie Russell

Robert Morse

Ed Stander

Aline Towne

Mousey Man's Wife

Claire Kelly

Harriet Stander

Eve Brent

Joe X's Blowsy Blonde

Majel Barrett

Mrs. Fred V.

Tommy Farrell

Rance G.'s Hanger On

Linda Harrison

Miss Stardust

Jason Wingreen

Harry 'Big Fella' Johnson

Robert Patten

Party Guest

Ray Montgomery

Party Guest

Virginia Wood

Bubbles

Lucille Ball

Technical Adviser (Mrs. Joe X)

Jack Benny

Technical Adviser (Ollie 'Sweet Lips')

Polly Bergen

Technical Adviser (Clara Brown)

Joey Bishop

Technical Adviser (Charlie)

Sid Caesar

Technical Adviser (at Romanoff's)

Art Carney

Technical Adviser (Joe X)

Wally Cox

Technical Adviser (Married 14 years)

Hal March

Technical Adviser (Man who loses coat)

Louis Nye

Technical Adviser (Irving, House Buyer)

Carl Reiner

Technical Adviser (Rance G.)

Phil Silvers

Technical Advisor (Realtor)

Terry-Thomas

Technical Adviser (Harold aka Tiger)

Ben Blue

Technical Adviser (Shoeless)

Ann Morgan Guilbert

Technical Adviser (Charlie's Wife)

Jeffrey Hunter

Technical Adviser (Mountain Climber)

Marty Ingels

Technical Adviser (Meat Eater)

Sam Jaffe

Technical Adviser (Shrink)

Jayne Mansfield

Technical Adviser (Girl with Harold)

Sanita Pelkey

Girl in Introduction (uncredited)

Delores Wells

Very Attractive Woman (uncredited)

Joy Harmon

Party Girl in Bar (uncredited)

Jackie Joseph

Janet Brophy

Heather Young

Girl with Megaphone

Nancy DeCarl

Woman with Baby

Karen Arthur

Lady Dinner Partner at Romanoff's

Damian London

Lone Male Diner at Romanoff's

Chanin Hale

Miss Crenshaw

George N. Neise

Man in Bed at Motel

Tim Herbert

Shoe Clerk

Elaine Devry

Jocelyn Montgomery