
He loves you. Do what he says. Simon, a seasoned psychology professor, is selected as the test subject for a controversial brain‑washing experiment. A team of scientists subjects him to relentless conditioning, trying to convince him that he is not human but a living being from another planet, testing the boundaries of belief, identity and obedience.
Does Simon have end credit scenes?
No!
Simon does not have end credit scenes. You can leave when the credits roll.
See current US streaming, rental, and purchase options for Simon (1980) via JustWatch.
Explore the complete cast of Simon, including both lead and supporting actors. Learn who plays each character, discover their past roles and achievements, and find out what makes this ensemble cast stand out in the world of film and television.

Max Wright
Leon Hundertwasser

Wallace Shawn
Eric Van Dongen

Alan Arkin
Simon Mendelssohn

Dick Cavett
Himself

Madeline Kahn
Dr. Cynthia Mallory

Austin Pendleton
Dr. Carl Becker

Louise Lasser
Doris (voice) (uncredited)

Roy Cooper
General's Aide

Keith Szarabajka
Josh

Fred Gwynne
Maj. Gen. Korey

Rex Robbins
Army Doctor

Adolph Green
Commune Leader

William Finley
Fichandler

Remak Ramsay
TV Newscaster

Lisa Maurer
Commune Member

David Warrilow
Blades

Billie Perkins
Commune Member

Yusef Bulos
Hemling Grotowsky

Judy Graubart
Lisa

Pierre Epstein
Military Aide

Ann Risley
Pam

Al Cerullo
Helicopter Pilot

Stephanie Segal
Commune Member

Hansford Rowe
Priest Babcock Beastly

Bonnie Deroski
Commune Member

Jerry Mayer
Prof. Jerry Milstein

Sol Frieder
Rabbi Chaim Glassberg

Tom Kubiak
Roach Reaction Patient

James Dukas
Narrator (voice)

Hetty Galen
Simon's Mother (voice)

Ed Karvoski
Commune Member

David Susskind
Himself

Jayant
Barundi

David Gideon
Security Guard

William Griffis
Senator

George Riddle
Muttonchop Aide

Frank J. Lucas
Psychologist

Barbara Mongin
Institute Staff Member

Jim Saxon
Commune Member

Paula Gibson
Melody

Michael Earl
Commune Member

Jay Lowman
Commune Member

Steven Nash
Commune Member

Barbara Bergen
Commune Member

Joyce Adams
Commune Member

Kathryn Cordes
Commune Member

Leslie Frances Williams
Commune Member

Nick Pippin
Commune Member

Mary Lou Kleinbach
Commune Member

Richard Bassett
Commune Member

Phil Witt
Commune Member

Isam Culver
Commune Member

Rickey Murray
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

Jeffrey Bacon
Commune Member

Elizabeth Wingate
Commune Member

Joan Adams
Commune Member
Discover where to watch Simon online, including streaming platforms, rental options, and official sources. Compare reviews, ratings, and in-depth movie information across sites like IMDb, TMDb, Wikipedia or Letterboxd.
Challenge your knowledge of Simon with this fun and interactive movie quiz. Test yourself on key plot points, iconic characters, hidden details, and memorable moments to see how well you really know the film.
What is the full name of the psychology professor who becomes the focus of the Institute's experiment?
Read the complete plot summary of Simon, including all major events, twists, and the full ending explained in detail. Explore key characters, themes, hidden meanings, and everything you need to understand the story from beginning to end.
The Institute for Advanced Concepts is a think tank with an unlimited budget and a knack for fabricating national hysterias. The five scientists hatch a plan to trick a man into believing he is from another world by brainwashing him, and they deploy their talking computer Doris to conduct a nationwide search that culminates in selecting a psychology professor named Simon Mendelssohn, a man who was abandoned at birth and is attempting to run a personal experiment using an isolation tank. At the institute, Simon is submerged in the isolation tank for an extended period and emerges in a weakened mental state, replaying the entire history of life on Earth from single-celled organisms to modern humans. While he is in this altered state, the scientists plant hypnotic suggestions that his mother is an alien spaceship and that he was manufactured rather than born. They broadcast Simon’s ramblings to spark a national mood swing, offering provocative ideas for reforming American culture. When they decide he has become too dangerous due to his sudden celebrity, they summon the military to kill him, but his girlfriend Lisa steps in to rescue him.
As the couple goes on the run, they encounter a commune that worships a television, which they call the “magic box,” and they discover a founder who used to work for the American Broadcasting Company and now drives a truck equipped with a high-powered TV transmitter. The military soon traces the origins of Simon’s hijacked signals, forcing the fugitives to flee once again. Lisa finally convinces Simon that he is human when she reveals she is pregnant with their child.
Dr. Becker, the institute’s head, blames the release of a gas that once lowered IQs on Simon’s actions. As the group regresses into childish behavior, Becker and the military commander devise a rocket plan meant to send Simon home to his planet, but it turns into a literal launch into space. Simon calls and surrenders, and Becker—convinced he has outsmarted him—accompanies him to the rocket. In a tense struggle, Simon overpowers Becker, straps him into the rocket seat, and escapes in a NASA uniform as Becker is launched into space.
The final scenes show Simon and Lisa settling in Canada with their child, choosing a quiet life away from constant pursuit by the American media. Yet the world keeps asking questions, including a radio broadcast that hints at Simon’s Nobel Peace Prize, attributed to his broadcasts’ odd but well-meaning reforms—such as proposals to rethink public restrooms and towel usage—leaving a sense of uneasy peace as a new era begins.

Coming soon on iOS and Android
From blockbusters to hidden gems — dive into movie stories anytime, anywhere. Save your favorites, discover plots faster, and never miss a twist again.
Sign up to be the first to know when we launch. Your email stays private — always.
Explore the mobile appImmerse yourself in the magic of cinema with live orchestral performances of your favorite film scores. From sweeping Hollywood blockbusters and animated classics to epic fantasy soundtracks, our curated listings connect you to upcoming film music events worldwide.
Explore concert film screenings paired with full orchestra concerts, read detailed event information, and secure your tickets for unforgettable evenings celebrating legendary composers like John Williams, Hans Zimmer, and more.
Discover the central themes, ideas, and keywords that define the movie’s story, tone, and message. Analyze the film’s deeper meanings, genre influences, and recurring concepts.
Explore the various alternative titles, translations, and other names used for Simon across different regions and languages. Understand how the film is marketed and recognized worldwide.
Browse a curated list of movies similar in genre, tone, characters, or story structure. Discover new titles like the one you're watching, perfect for fans of related plots, vibes, or cinematic styles.
What's After the Movie?
Not sure whether to stay after the credits? Find out!
Check out our other apps:
SAT Sphere
Build confidence for the Digital SAT.
Mori Atlas
Discover wild places worth protecting.
Luntero
Search smarter for a home in Amsterdam.
Plot Explained
Unravel movie endings and hidden clues.
Pokechamp
Dive into Pokémon data and battle logic.
Driving Theory
Get ready for your European theory test.
Movie Dust
Plan your next cinema trip with ease.
Musemap
Find art and culture as you travel.
Selkobase
Compare credentials before committing.
Local Manual
Turn an unfamiliar country into practical next steps.
Lernavi
Compare school systems before your next move.
GymRoam
Find a workout stop wherever your plans take you.
Explore Our Movie Platform
New Movie Releases (2026)
Famous Movie Actors
Top Film Production Studios
Movie Plot Summaries & Endings
Major Movie Awards & Winners
Best Concert Films & Music Documentaries
Movie Collections and Curated Lists
© 2026 What's After the Movie. All rights reserved.
Privacy Policy