Karen Allen
Alex Bristow
Armand Assante
Mark Mathias
Josh Mostel
Mel Gorsky
Holly Hunter
Coral Grable
Richard Libertini
Doctor Parrish
Nan Martin
Mrs. Norton
Ivan Bonar
Dr. Ridley
Janni Brenn
Mrs. Parrish
Joyce Brothers
Visiting Psychologist (as Dr. Joyce Brothers)
Alice Drummond
Site Committee
Alexa Kenin
Sheila Sandusky
Jon Shear
Tyler Forbes (as Jon Matthews)
Crystal Buda
Cleo Grable
Vivian Warfield
Blaze De Teo
Steven Kent Foster
Nerd
Cynthia Vance
Co-Ed
Al Jones
Site Committee
Peter Prouse
Site Committee
Dan J.P. Ciernia
Student (uncredited)
Mike the Chimpanzee
Himself