Joan Collins

as Diane

Michael Morgan

as Tommy

Shell Kepler

as Lisa

Lanny Horn

as Ralph

Erin Donovan

as Sheila

Lee Purcell

as Ms. Jackson

Carrie Snodgress

as Dr. Delingua

Wings Hauser

as Reddog

Joy Michael

as Diane at 16

Newell Alexander

as Mr. Stern

Mel Welles

as Doctor

Betty Thomas

as Reddog's Secretary

Michelle Bauer

as Dream Groupie (uncredited)

Annie Ample

as Fantasy Nurse (uncredited)

Barbara Peckinpaugh

as Magazine Model (uncredited)