- Anne Bancroft
- Estelle Rolfe
- Ron Silver
- Gilbert Rolfe
- Carrie Fisher
- Lisa Rolfe
- Catherine Hicks
- Jane Mortimer
- Steven Hill
- Walter Rolfe
- Howard Da Silva
- Angelo Dokakis
- Dorothy Loudon
- Sonya Apollinar
- Harvey Fierstein
- Bernie Whitlock
- Hermione Gingold
- Elizabeth Rennick
- Richard B. Shull
- Shepard Plotkin
- Michael Lombard
- Mr. Morganelli
- Ed Crowley
- Mr. Goldhammer
- Alice Spivak
- Claire Rolfe
- Maurice Sterman
- Dr. Cohen
- Antonia Rey
- Esmeralda
- Court Miller
- 'Romeo and Juliet' Director
- Denny Dillon
- Elaine
- Karen Shallo
- Harriet
- Max Alexander
- Roger Kellerman
- Peter Gumeny
- Arrest Officer
- Stephen Burks
- Black Officer
- Tony DiBenedetto
- Construction Worker #1
- Burtt Harris
- Construction Worker #2
- Mervyn Nelson
- Movie Shop Owner
- John Ring
- Garbo Doorman
- Anne Gartlan
- Garbo Maid
- José Angel Santana
- Sanchez / Orderly (as Jose Santana)
- Jennifer Ogden
- 2nd Nurse
- David Hammil
- Ferry Conductor
- Roderick Cook
- Von Klammer
- Mary McDonnell
- Lady Capulet
- Leila Danette
- Augusta
- Nadine Darling
- Flea Market Saleslady #1
- Joan DeMarrais
- Flea Market Saleslady #2
- Ethel Beatty
- Lady in Jail
- Adolph Green
- Adolph Green
- Arthur Schlesinger Jr.
- Arthur Schlesinger Jr.
- Didi D'Errico
- Actor's Equity Receptionist
- Harry Madsen
- Delivery Man
- Jon Hayden
- Romeo
- Van Kaplan
- Photographer
- Christine Parks
- Dalmatian Lady
- Andrzej Bartkowiak
- (uncredited)
- Cy Coleman
- Cy Coleman
- Betty Comden
- Garbo
- Arlene Francis
- Arlene Francis
- Greta Garbo
- Self
- Michael Musto
- Michael Musto
- Charles Pendelton
- Construction Worker
- George Plimpton
- George Plimpton
- Sharon Porter-Phillips
- (uncredited)
- Stephen M. Silverman
- Journalist at Museum of Modern Art
- Liz Smith
- (uncredited)
