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
