Bob & Carol & Ted & Alice

Natalie Wood

Carol Sanders

Robert Culp

Bob Sanders

Elliott Gould

Ted Henderson

Dyan Cannon

Alice Henderson

Horst Ebersberg

Horst

Lee Bergere

Emilio

Donald F. Muhich

Psychiatrist

Noble Lee Holderread Jr.

Sean Sanders

K.T. Stevens

Phyllis

Celeste Yarnall

Susan

Lynn Borden

Cutter

Linda Burton

Stewardess

Greg Mullavey

Group Leader

Andre Philippe

Oscar

Diane Berghoff

Myrna

John Halloran

Conrad

Susan Merin

Toby

Jeffrey Walker

Roger

Vicki Thal

Jane

Joyce Easton

Wendy

Howard Dayton

Howard

Alida Ihle

Alida

John Brent

Dave

Garry Goodrow

Bert

Carol O'Leary

Sue

Constance Egan

Norma

Robert Buckingham

Man Outside Hotel (uncredited)

Florence Clayton

Woman (uncredited)

Bill Cosby

Nightclub Patron (uncredited)

Philip de Firmian

Susan's Date (uncredited)

George DeNormand

Man Outside Hotel (uncredited)

Leif Garrett

Jimmy Henderson (uncredited)

Michael Z. Gordon

Waiter (uncredited)

Marshall Ho'o

Dr. Ho'o (uncredited)

Bill Kelly

Man (uncredited)

Walter Kightly

Bob's Friend (uncredited)

Hawk Koch

El Taco Employee (voice) (uncredited)

Devra Korwin

Booth Woman (uncredited)

Saverio LoMedico

Owner (uncredited)

Ivan Markota

Bartender (uncredited)

Sally Marr

Model (uncredited)

Paul Mazursky

Man Screaming at the Institute (uncredited)

Doreen McLean

Woman (uncredited)

Fredricka Meyers

Cover Girl (uncredited)

Susana Miranda

Girl on Airplane (uncredited)

Joe Pine

Casino Patron (uncredited)

John S. Ragin

Gas Station Attendant (uncredited)

Richard Reed

Waiter at Chianti's (uncredited)

Mark Rhudy

Father at Birthday Party (uncredited)

David Roya

Waiter (uncredited)

Connie Sawyer

Waitress (uncredited)

Bernard Sell

Man Outside Hotel (uncredited)

Margaret Teele

Woman (uncredited)

Tereza Thaw

Woman (uncredited)

Arthur Tovey

Man Outside Hotel (uncredited)

Larry Tucker

Bearded Man Walking in Front of Hotel (uncredited)

Renata Vanni

Chianti Woman (uncredited)

Joey D. Vieira

Dishwasher (uncredited)

Al Ward

Chef (uncredited)

Paula Warner

Model (uncredited)

Louis Whitehill

Car Attendant (uncredited)

Pamebla Woolman

Woman (uncredited)