- Alan Arkin
- Simon Mendelssohn
- Madeline Kahn
- Dr. Cynthia Mallory
- Austin Pendleton
- Dr. Carl Becker
- Judy Graubart
- Lisa
- William Finley
- Fichandler
- Jayant
- Barundi
- Wallace Shawn
- Eric Van Dongen
- Max Wright
- Leon Hundertwasser
- Fred Gwynne
- Maj. Gen. Korey
- Adolph Green
- Commune Leader
- Keith Szarabajka
- Josh
- Ann Risley
- Pam
- Pierre Epstein
- Military Aide
- Roy Cooper
- General's Aide
- Rex Robbins
- Army Doctor
- David Warrilow
- Blades
- Hetty Galen
- Simon's Mother
- David Gideon
- Security Guard
- David Susskind
- David Susskind
- Dick Cavett
- Dick Cavett
- Remak Ramsay
- TV Newscaster
- Hansford Rowe
- Priest Babcock Beastly
- Yusef Bulos
- Hemling Grotowsky
- Jerry Mayer
- Prof. Jerry Milstein
- Sol Frieder
- Rabbi Chaim Glassberg
- William Griffis
- Senator
- Frank J. Lucas
- Psychologist
- George Riddle
- Muttonchop Aide
- Tom Kubiak
- Roach Reaction Patient
- Al Cerullo
- Helicopter Pilot
- Barbara Mongin
- Institute Staff Member
- Paula Gibson
- Melody
- James Dukas
- Narrator
- Jim Saxon
- Commune Member
- Michael Earl
- Commune Member
- Jay Lowman
- Commune Member
- Steven Nash
- Commune Member
- Barbara Bergen
- Commune Member
- Joyce Adams
- Commune Member
- Bonnie Deroski
- Commune Member
- Kathryn Cordes
- Commune Member
- Leslie Frances Williams
- Commune Member
- Nick Pippin
- Commune Member
- Ed Karvoski
- Commune Member
- Mary Lou Kleinbach
- Commune Member
- Richard Bassett
- Commune Member
- Phil Witt
- Commune Member
- Isam Culver
- Commune Member
- Rickey Murray
- Commune Member
- Stephanie Segal
- Commune Member
- Max Goff
- Commune Member
- Mary Donnet
- Commune Member
- Don Stitt
- Commune Member
- Nikki Kollins
- Commune Member
- Jenny Gault
- Commune Member
- Regina Rodwell
- Commune Member
- Schorling Schneider
- Commune Member
- Tina Austin
- Commune Member
- Billie Perkins
- Commune Member
- Jeffrey Bacon
- Commune Member
- Elizabeth Wingate
- Commune Member
- Joan Adams
- Commune Member
- Lisa Maurer
- Commune Member
- Louise Lasser
- Doris
