Trailer
Images
 | Robert De Niro as Leonard Lowe |
 | Robin Williams as Malcolm Sayer |
 | John Heard as Dr. Kaufman |
 | Julie Kavner as Eleanor Costello |
 | Penelope Ann Miller as Paula |
 | Ruth Nelson as Mrs. Lowe |
 | Max von Sydow as Peter Ingham |
 | Anne Meara as Miriam |
 | Dexter Gordon as Rolando |
 | George Martin as Frank |
 | Alice Drummond as Lucy Fishman |
 | Richard Libertini as Sidney |
 | Laura Esterman as Lolly |
 | Barton Heyman as Bert |
 | Judith Malina as Rose |
 | Mary Alice as Nurse Margaret |
 | Keith Diamond as Anthony |
 | Bradley Whitford as Dr. Tyler |
 | John Christopher Jones as Dr. Sullivan |
 | Mary Catherine Wright as Nurse Beth |
| Jayne Haynes as Frances |
| Le Clanché du Rand as Magda |
 | Yusef Bulos as Joseph |
 | Steven Randazzo as Luis |
| Gloria Harper as Dottie |
| Gwyllum Evans as Desmond |
 | Steve Vinovich as Ray |
 | Tiger Haynes as Janitor |
| Harvey Miller as Hospital Director |
| Tanya Berezin as Psychiatrist |
 | Peter Stormare as Neurochemist |
| Shane Fistell as Man in Hall |
| Waheedah Ahmad as Hysterical Woman |
 | Charles Keating as Mr. Kean |
| Christina Huertes as Christina |
| Linda Burns as Fishsticks |
| Judy Jacksina as Hospital Receptionist |
| Gary Tacon as George |
| Rico Elias as Orderly #1 |
 | Mel Gorham as Nurse Sara |
| Chris Carolan as EEG Technician |
| Debra Kovner-Zaks as Cafeteria Nurse |
 | Bret McCormick as Head Ward Orderly |
 | Gordon Joseph Weiss as Ward #5 Patient |
 | Byron Utley as Ward #5 Patient #2 |
| Anthony McGowen as Ward #5 Patient #3 |
| Paul Montgomery as Ward #5 Patient #4 |
| Leonard Tepper as Ward #5 Patient #5 |
 | Vincent Pastore as Ward #5 Patient #6 |
| Howard Feller as Ward #5 Patient #7 |
| Libby Titus as Club Singer |
| Michael Hyde as Bus Driver |
| Tomislav Novakovic as Bartender |
| Adam Bryant as Librarian |
| Anthony J. Nici as Young Leonard |
| Oliver Block as Leonard's Friend #1 |
| Buck Smith as Leonard's Friend #2 |
| Joan E. MacIntosh as Teacher |
 | Harry L. Seddon as Medical Student |
 | Jack Mulcahy as Psych Ward Intern |
| Jason W. Fuchs as Pot-Head Hippie |
 | Vin Diesel as Hospital Orderly (uncredited) |
| Directing | |
| Penny Marshall | Director |
Writing | |
| Steven Zaillian | Screenplay |
Production | |
| Lawrence Lasker | Producer |
| Walter F. Parkes | Producer |
Camera | |
| Miroslav Ondříček | Director of Photography |
Editing | |
| Battle Davis | Editor |
| Gerald B. Greenberg | Editor |
Production | |
| Bonnie Timmermann | Casting |
Art | |
| Anton Furst | Production Design |
Costume & Make-Up | |
| Cynthia Flynt | Costume Design |
Production | |
| Elliot Abbott | Executive Producer |
| Penny Marshall | Executive Producer |
| Arne Schmidt | Executive Producer |
Crew | |
| Mike Bedard | Cableman |
Art | |
| Bill Groom | Art Direction |
| George DeTitta Jr. | Set Decoration |
| Alan E. Muraoka | Assistant Art Director |
| Ron Petagna Sr. | Construction Coordinator |
Costume & Make-Up | |
| George Potts | Assistant Costume Designer |
Directing | |
| Sheila Paige | Script Supervisor |
Costume & Make-Up | |
| Ilona Herman | Hairstylist |
| William A. Farley | Hairstylist |
| Scott W. Farley | Hairstylist |
| Bernadette Mazur | Makeup Artist |
Production | |
| Amy Lemisch | Associate Producer |
| Timothy M. Bourne | Unit Production Manager |
Directing | |
| Tony Gittelson | First Assistant Director |
| Glen Trotiner | Second Assistant Director |
Editing | |
| Jere Huggins | Additional Editing |
Art | |
| Sarah Knowles | Art Department Assistant |
| Lynn Nigro | Art Department Assistant |
Editing | |
| Kathryn Camp | First Assistant Editor |
| Debbie Goldsmith | Assistant Editor |
| Suzanne Pillsbury | Assistant Editor |
Sound | |
| Jerry Ross | Supervising Sound Editor |
| Bob Newlan | Sound Editor |
| Hamilton Sterling | Sound Editor |
| Hugo Weng | Sound Editor |
| John Morris | Sound Editor |
| Michele Perrone | Assistant Sound Editor |
| Michelle Pleis | Assistant Sound Editor |
| Linda Yeaney | Assistant Sound Editor |
| James Flamberg | Music Editor |
| Laura Perlman | Music Editor |
| Les Lazarowitz | Production Sound Mixer |
| Gary C. Bourgeois | Sound Re-Recording Mixer |
| Matthew Iadarola | Sound Re-Recording Mixer |
| Linda Murphy | Boom Operator |
Camera | |
| Tom Priestley Jr. | Camera Operator |
Art | |
| Gerald DeTitta | Leadman |
Costume & Make-Up | |
| Ilona Herman | Makeup Artist |
Lighting | |
| Richard Quinlan | Chief Lighting Technician |
Production | |
| Margaret Mitchell | Production Accountant |
| Richard Baratta | Location Manager |
Art | |
| Robert Griffon Jr. | Property Master |
Crew | |
| Michael Hyde | Transportation Captain |
Sound | |
| Beth Bergeron | Supervising ADR Editor |
| Joe Dorn | ADR Editor |
| David Williams | Foley Editor |
| Mark Pappas | Foley Editor |
Crew | |
| Larry Kaplan | Unit Publicist |
Camera | |
| Louis Goldman | Still Photographer |
Editing | |
| Donah Bassett | Negative Cutter |
Crew | |
| Patricia Birch | Thanks |
| Ed. Weinberger | Thanks |
| Yakov Sklyansky | Thanks |
| Jack Winter | Thanks |
| Carrie Fisher | Thanks |
| Tracy Reiner | Thanks |
Writing | |
| Oliver Sacks | Book |
Sound | |
| Randy Newman | Original Music Composer |
