Warren Beatty
Vincent Bruce
Jean Seberg
Lilith Arthur
Peter Fonda
Stephen Evshevsky
Kim Hunter
Dr. Bea Brice
Anne Meacham
Mrs. Yvonne Meaghan
Jessica Walter
Laura
Gene Hackman
Norman
James Patterson
Dr. Lavrier
René Auberjonois
Howie (uncredited)
Ben Carruthers
Benito (uncredited)
Olympia Dukakis
Patient (uncredited)
Edith Fellows
Patient (uncredited)
Alice Spivak
Lonely Girl (uncredited)
Robert Reilly
Bob Clayfield
Jeanne Barr
Miss Glassman (uncredited)
Maurice Brenner
Mr. Gordon (uncredited)
Tina Pine
Patient (uncredited)