Barbara Parkins (Anne Welles)
Patty Duke (Neely O'Hara)
Paul Burke (Lyon Burke)
Sharon Tate (Jennifer North)
Tony Scotti (Tony Polar)
Barry O'Hara (Assistant Stage Manager)
Peggy Rea (Neely's Voice Coach)
Margot Stevenson (Anne's Mother)
Corinna Tsopei (Telephone Girl)
Mikel Angel (Man in Hotel Room)
Richard Dreyfuss
Marvin Hamlisch (Pianist)
Pat Becker
Dorothy Neumann
Judith Lowry (Aunt Amy)
Richard Angarola (Claude Chardot)
Darlene Conley
Alexander Davion (Ted Casablanca)
Norman Burton (Neely's Hollywood Director)
Gertrude Flynn (Ladies' Room Attendant)
Barry Cahill (Man in Bar)
Jeanne Gerson (Neely's Maid)
Robert Gibbons (Desk Clerk at Lawrenceville Hotel)
Billy Beck (Man Sleeping in Movie House)
Richard Hoyt (Reporter)
Naomi Stevens (Miss Steinberg)
Robert H. Harris (Henry Bellamy)
Jacqueline Susann (First Reporter)
Robert Viharo (Director)
Joey Bishop (Telethon Host)
George Jessel (Host at Grammy Awards)
Martin Milner (Mel Anderson)
Susan Hayward (Helen Lawson)
Charles Drake (Kevin Gillmore)
Lee Grant (Miriam Polar)