George Segal as Jeff Thompson

Natalie Wood as Mari Thompson

Richard Benjamin as Marv Cooper

Valerie Harper as Barbara

Bob Dishy as Howard

Dom DeLuise as Walter Holmes

Marilyn Sokol as Alice Squib

Priscilla Barnes as Helena Dryden

Oliver Clark as Max Dryden

Mark Lonow as Tom

Allan Arbus as Al Squib

Arlene Golonka as Sally Cooper

Sondra Currie as Lainy

Robert Wahler as Rick

Catherine Hickland as Rebecca

David Comfort as Dick Thompson

David Rode as Andy Thompson

Rick Segall as Charlie Thompson

Stewart Moss as Donald

Colby Chester as Reggie

William Bogert as Dancing Man at First Party

Bebe Drake as Policewoman

Murphy Dunne as Dr. Schallert

Jan Jorden as Woman at Soccer Game

Edgy Lee as Liu

Jenny O'Hara as Dancing Lady at First Party

George Pentecost as Roy

Charlene Ryan as Oriana

Shari Summers as Maggie

Yvonne Wilder as Margrette

Delia Salvi as Bel Air Woman

Mieko Kobayashi as Carol

Billy Holms as Dave

David Bennett as Ralph

Robert Perault as Young Man at Restaurant

Brad Maule as Young Man at Restaurant

Vernon Weddle as Man at Soccer Game

G. Lewis Cates as Boy at Refreshment Stand

Jenny Neumann as Nurse

Lynne Marie Stewart as Receptionist

Oz Tortora as Patron at Tommy's

Mary Armstrong as Party Guest

Elaine Bolton as Party Guest

Teda Bracci as Party Guest

Angela Carnon as Party Guest

Alex Cole as Party Guest

Luis Contreras as Party Guest

Randy Doney as Party Guest

Susan Donovan as Party Guest

Melba Englander as Party Guest

Lynn Eriks as Party Guest

John Frayer as Party Guest

Betty Gorham as Party Guest

Leeyan Granger as Party Guest

Stan Haze as Party Guest

Victor Heineman as Party Guest

Eleanor C. Heutschy as Party Guest

Jamilah Hunter as Party Guest

Barbara Isaacs as Party Guest

Birl Jonns as Party Guest

Nadejda Klein as Party Guest

Linda Lee as Party Guest

Jock Livingston as Party Guest

Robin Menken as Party Guest

B. J. Merholz as Party Guest

Linda Montana as Party Guest

Gene Montoya as Party Guest

Richard D. Montoya as Party Guest

Masumi Moriyama as Party Guest

Wendy Oates as Party Guest

Mustapha Bourth Ouchama as Party Guest

Judy Pierce as Party Guest

Gregory Rozakis as Party Guest

Alton Ruff as Party Guest

Blane Savage as Party Guest

Jo Linda Sorci as Party Guest

Luis E. Torres as Party Guest

Randy Williams as Party Guest

Darcel Wynne as Party Guest

Marilyn Fox as Party Guest