- Walter Matthau
- Willy Clark
- George Burns
- Al Lewis
- Richard Benjamin
- Ben Clark
- Lee Meredith
- Nurse in Sketch - 'Miss McIntosh'
- Carol Arthur
- Mrs. Doris Green - Al's Daughter
- Rosetta LeNoire
- Odessa - Willy's Nurse
- F. Murray Abraham
- Mechanic
- Howard Hesseman
- Mr. Walsh - Commercial Director
- James Cranna
- Mr. Schaeffer - TV Director
- Ron Rifkin
- T.V. Floor Manager
- Jennifer Lee Pryor
- Helen Clark
- Fritz Feld
- Man at Audition
- Jack Bernardi
- Man at Audition
- Garn Stephens
- Eddie - Stage Manager
- Santos Morales
- Desk Clerk
- Archie Hahn
- Assistant at Audition
- Sid Gould
- Patient
- Tom Spratley
- Card Player
- Rashel Novikoff
- Woman in Hotel
- Sammy Smith
- Man on Street
- Dan Resin
- Mr. Ferranti - Actor's Fund Home Director
- Milt Kogan
- Doctor
- Bob Goldstein
- Waiter
- Walter Stocker
- T.V. Executive
- Duchess Dale
- Ben's Secretary
- Bill Reddick
- Announcer
- Eddie Villery
- Flower Delivery Boy
- Gary K. Steven
- Boy
- Steve Allen
- Narrator of Fictional TV Program
- Phyllis Diller
- Performer on Fictional TV Program
- Lois Hamilton
- (uncredited)
- Lauren Simon
- Woman in Lobby
- Rufus Smith
- Unnamed Card Player
