Walter Matthau
Henry Graham
Elaine May
Henrietta Lowell
Jack Weston
Andy McPherson
George Rose
Harold
James Coco
Uncle Harry
Doris Roberts
Mrs. Traggert
Renée Taylor
Sharon Hart
William Redfield
Beckett
Graham Jarvis
Bo
Jess Osuna
Frank
David Doyle
Mel
Fred Stewart
Mr. von Rensaeller
Mark Gordon
John
Rose Arrick
Gloria Cunliffe
Conrad Bain
Professor Heinrich (uncredited)
William Hickey
Smith (uncredited)
John O'Leary
Desk Clerk (uncredited)
Ida Berlin
Maid (uncredited)
Mildred Clinton
Mrs. Heinrich (uncredited)
Trent Gough
Victor the Butler (uncredited)
Carol Morley
(uncredited)
Cindy Rubenfine
Dodi Heinrich (uncredited)
Ellen Stretton
(uncredited)
Don Guidice
Editor
Hillard Elkins
Producer
Fredric Steinkamp
Editor
Elaine May
Director
Howard W. Koch
Producer
Joseph Manduke
Producer
Gayne Rescher
Director of Photography
Neal Hefti
Original Music Composer
Warren Clymer
Production Design
Marion Dougherty
Casting
Edward Beyer
Editor
Steven Mussman
Assistant Director
Anthea Sylbert
Costume Design
Larry Kostroff
Production Manager
Richard Fried
Production Design
Nicholas Sgarro
Script Supervisor
David Dockendorf
Sound
Bobby Wilson
Set Dresser
Jack Petty
Makeup Artist
Richard Nelson
Set Dresser
Larry Wolff
Sound Recordist
Irving Buchman
Makeup Artist
Lee Bost
Sound
Joe Friel
Set Dresser
Angelo Corrao
Assistant Editor
Steve Barnett
Assistant Director
Burt Bluestein
Assistant Director
Phil Naso
Hairstylist
Leonard Saltzberg
Assistant Editor
Jack Ritchie
Original Film Writer
Elaine May
Screenplay