Walter Matthau

Character: Paul Manning

Inger Stevens

Character: Ruth Manning

Sue Ane Langdon

Character: Irma Johnson

Jackie Russell

Character: Jackie Russell

Robert Morse

Character: Ed Stander

Aline Towne

Character: Mousey Man's Wife

Claire Kelly

Character: Harriet Stander

Eve Brent

Character: Joe X's Blowsy Blonde

Marvin Brody

Character: Taxi Driver

Majel Barrett

Character: Mrs. Fred V.

Marian Mason

Character: Mrs. Rance G.

Tommy Farrell

Character: Rance G.'s Hanger On

Linda Harrison

Character: Miss Stardust

Jason Wingreen

Character: Harry 'Big Fella' Johnson

Pat Becker

Character: Party Guest

Fred Holliday

Character: Party Guest

Robert Patten

Character: Party Guest

Ray Montgomery

Character: Party Guest

Virginia Wood

Character: Bubbles

Lucille Ball

Character: Technical Adviser (Mrs. Joe X)

Jack Benny

Character: Technical Adviser (Ollie 'Sweet Lips')

Polly Bergen

Character: Technical Adviser (Clara Brown)

Joey Bishop

Character: Technical Adviser (Charlie)

Sid Caesar

Character: Technical Adviser (at Romanoff's)

Art Carney

Character: Technical Adviser (Joe X)

Wally Cox

Character: Technical Adviser (Married 14 years)

Hal March

Character: Technical Adviser (Man who loses coat)

Louis Nye

Character: Technical Adviser (Irving, House Buyer)

Carl Reiner

Character: Technical Adviser (Rance G.)

Phil Silvers

Character: Technical Advisor (Realtor)

Terry-Thomas

Character: Technical Adviser (Harold aka Tiger)

Ben Blue

Character: Technical Adviser (Shoeless)

Ann Morgan Guilbert

Character: Technical Adviser (Charlie's Wife)

Jeffrey Hunter

Character: Technical Adviser (Mountain Climber)

Marty Ingels

Character: Technical Adviser (Meat Eater)

Sam Jaffe

Character: Technical Adviser (Shrink)

Jayne Mansfield

Character: Technical Adviser (Girl with Harold)

Sanita Pelkey

Character: Girl in Introduction (uncredited)

Delores Wells

Character: Very Attractive Woman (uncredited)

Joy Harmon

Character: Party Girl in Bar (uncredited)

Dee Carroll

Character: Party Guest

Jackie Joseph

Character: Janet Brophy

Heather Young

Character: Girl with Megaphone

Evelyn King

Character: Female Plaintiff

Nancy DeCarl

Character: Woman with Baby

Warrene Ott

Character: Woman with Gun

Michael Romanoff

Character: Romanoff's Maitre D'

Karen Arthur

Character: Lady Dinner Partner at Romanoff's

Damian London

Character: Lone Male Diner at Romanoff's

Chanin Hale

Character: Miss Crenshaw

Julie Tate

Character: Woman in Bed at Motel

George N. Neise

Character: Man in Bed at Motel

Tim Herbert

Character: Shoe Clerk

Patricia Sides

Character: Mau Mau Dancer at Bantu Cusine

Pat McCaffrie

Character: Happy Hour Motel Clerk

Jimmy Cross

Character: Mr. Brown

Elaine Devry

Character: Jocelyn Montgomery