"After 17 years of marriage in American suburbia, Richard and Barbara Harmon step into the new world of divorce."
Dick Van Dyke
as Richard Harmon
Debbie Reynolds
as Barbara Harmon
Jason Robards
as Nelson Downes
Jean Simmons
as Nancy Downes
Van Johnson
as Al Yearling
Joe Flynn
as Lionel Blandsforth
Shelley Berman
as David Grieff
Martin Gabel
as Dr. Zenwinn
Lee Grant
as Dede Murphy
Pat Collins
as Herself
Tom Bosley
as Farley
Emmaline Henry
as Fern Blandsforth
Richard Gautier
as Larry Strickland
Tim Matheson
as Mark Harmon
Gary Goetzman
as Jonathan Harmon
Eileen Brennan
as Eunice Tase
Shelley Morrison
as Jackie
Bella Bruck
as Celia
John J. Anthony
as Judge
Leon Alton
as Bank Officer
Don Anderson
as Nightclub Patron
Susan Bay Nimoy
as Waitress
Doris Roberts
as Hypnotic Subject
Jan Burrell
as Teddy
Michael Abelar
as Bartender (uncredited)
Arthur Abelson
as Junior Attorney (uncredited)
Stanley Allan
as Pat Collins' Assistant (uncredited)
Dick Baron
as Minor Role (uncredited)
Christopher Barrey
as Boy (uncredited)
Pamela Bartholomew
as Model (uncredited)
Jerry Beal
as Hypnotic Subject (uncredited)
Susan Benjamin
as Girl (uncredited)
Ralph Brooks
as Nightclub Patron (uncredited)
Joe Budd
Robert Christopher
as Ralph Ames (uncredited)
Cordy Clark
as Wife (uncredited)
Tom D'Andrea
as Mildred's Irate Husband (voice) (uncredited)
Gino DeAgustino
as Vice President (uncredited)
Fabian Dean
as Husband (uncredited)
George DeNormand
as Show Spectator (uncredited)
Larry Ely
Harry Fleer
as Bank Guard (uncredited)
Martine Fraser
Tony Fraser
as Benji (uncredited)
Patsy Garrett
as Phoebe (uncredited)
Bill Giorgio
as Counterman (uncredited)
Robert Gmuer
Toni Gmuer
George Golden
Doris Goodman
Margie Hall
as Bank Clerk (uncredited)
Kenneth Harp
as Nancy's Date (uncredited)
Matt Helreich
Craig Huxley
as Bruce (uncredited)
Harvey Johnson
as Gloating Driver (uncredited)
Sallie Jones
as Secretary (uncredited)
Byron Kane
Barbara Kelley
as Clerk (uncredited)
Lucille Meredith
as Lucy (uncredited)
Oaky Miller
as Bank Teller (uncredited)
Hans Moebus
Ricki Norton
as Harriet (uncredited)
Monty O'Grady
Angel Pine
as Cynthia (uncredited)
Charles Pinney
as Howard Thresham (uncredited)
Remo Pisani
Joe Ploski
Cosmo Sardo
as Maitre d' (uncredited)
Jackie Searl
Carol Anne Seflinger
as Maggie (uncredited)
Bernard Sell
Sammy Shack
as Spectator (uncredited)
Peter Sparrow
Doris Stephens
Suzanne Taylor
as Feltman (uncredited)
Dodie Warren
as Ruth Thresham (uncredited)
Dick Winslow
as Card Player (uncredited)
Bud Yorkin
Director
Norman Lear
Producer
Conrad L. Hall
Director of Photography
Dave Grusin
Original Music Composer
James Saper
Assistant Camera
Jack Haynes
Sound
Ben Lane
Makeup Supervisor
Rusty Meek
Assistant Director
Thomas Del Ruth
Edward Stephenson
Production Design
Ferris Webster
Editor
Howard Pine
Unit Production Manager
Charles J. Rice
Sound Supervisor
Rodney Bingenheimer
Stunt Driver
Michael A. Jones
Best Boy Grip
William Randall Jr.
Frances Lear
Assistant Costume Designer
Screenplay
Frank Tuttle
Set Decoration
Robert Kaufman
Story
Sydney Guilaroff
Hairstylist
Bob Mackie
Costume Design