Jason Robards
— Matthew South
Katharine Ross
— Anais Appleton
Scott Hylands
— David Appleton
Roy Jenson
— Man in the Park
Mark Bramhall
— Man in the Park
Marc Hannibal
— Dog Owner
Robert C. Ferro Jr.
— Private Detective
Floy Dean
— Woman in a Restaurant
Chuck Dorsett
— Dentist (as Charles Dorsett)
Laura Ash
— Patient
Robert Rothwell
— Policeman
Brady Rubin
— Girl in the Movie (as Vera Stough)
James Burr Johnson
— FBI Agent
Lou Picetti
— FBI Agent
Stu Klitsner
— FBI Agent
Robin Menken
— Hippie
Christopher Pray
— Hippie
Jack Nance
— Hippie
Mako
— Psychiatrist
Suzanne Somers
— Woman at Baptism (uncredited)