Jack Lemmon as Joe Clay

Lee Remick as Kirsten Arnesen Clay

Charles Bickford as Ellis Arnesen

Jack Klugman as Jim Hungerford

Alan Hewitt as Rad Leland

Tom Palmer as Ballefoy

Debbie Megowan as Debbie Clay

Maxine Stuart as Dottie

Jack Albertson as Trayner

Leon Alton as Party Guest (uncredited)

Don Anderson as Party Guest (uncredited)

Lynn Borden as Party Guest (uncredited)

George DeNormand as Party Guest (uncredited)

James Gonzalez as Party Guest (uncredited)

Kenner G. Kemp as Party Guest (uncredited)

Harold Miller as Party Guest (uncredited)

Bert Stevens as Party Guest (uncredited)

Arthur Tovey as Party Guest (uncredited)

Charlene Holt as Guest (uncredited)

Mary Benoit as Tenant (uncredited)

Ella Ethridge as Tenant (uncredited)

Pat O'Malley as Tenant (uncredited)

Mel Blanc as Cartoons (voice) (uncredited)

Gail Bonney as Gladys (uncredited)

Dick Crockett as Boor (uncredited)

Russell Custer as Alcoholics Anonymous Member (uncredited)

Mathew McCue as Alcoholics Anonymous Member (uncredited)

Jennifer Edwards as Debbie Clay at Age 5 (uncredited)

Chuck Hicks as Attendant (uncredited)

James Lanphier as Prince (uncredited)

Ken Lynch as Proprietor (uncredited)

Doye O'Dell as Charlie Deans (uncredited)

Jack Riley as Waiter (uncredited)

Tom Rosqui as Bettor (uncredited)

Olan Soule as Elevator Operator (uncredited)

Katherine Squire as Mrs. Nolan (uncredited)

Charles Watts as Landry (uncredited)

Russ Bender as (uncredited)

John Bard Manulis as (uncredited)

Leoda Richards as Party Guest

Barbara Hines as Party guest