 | Clint Howard als Ice Cream Man / Gregory Tudor |
 | Olivia Hussey als Nurse Wharton |
 | David Warner als Reverend Langley |
 | Jan-Michael Vincent als Detective Gifford |
 | Sandahl Bergman als Marion Cassera |
 | David Naughton als Martin Cassera |
 | Justin Isfeld als Johnny Spodak |
 | Anndi McAfee als Heather Langley |
 | JoJo Adams als Tuna Cassera |
| Mikey LeBeau als Small Paul |
| Steve Garvey als Mr. Spodak |
 | Janet Wood als Mrs. Spodak |
 | Andrea Evans als Wanda |
| Stephen Fiachi als Gus |
| Stephanie Champlin als Janet |
| Doug Llewelyn als Store Manager |
 | Tom Reilly als Charley |
 | Cole S. McKay als Ice Cream King |
 | Tori Welles als Woman in Market (as Brittania Paris) |
| Zachary Benjamin als Roger Smith |
| Jessica Devlin als Mrs. Smith |
 | E.E. Bell als Happy Doctor |
 | Ryan Holihan als Photo Clerk |
 | Ed Morgan als Crazy Doctor |
| Lee Majors II als Detective Maldwyn |
 | Karl Makinen als Jacob Spodak |
| Keith Mills als Butcher |
| Matthew McCurley als Young Gregory |
| Kendall McCarthy als Police Officer |
| Jeanine Anderson als Mrs. Langley |
| Marla Frees als Gregory's Mother |
 | Ken Hanes als Police Officer |
| Frank Roach als Park Janitor |
| Carly Adams als Little Girl |
| Roger Ferreira als Doctor in Psychiatric Institution (uncredited) |
| Roger Ferreira als Asylum Inmate in Straight Jacket (uncredited) |
| Sven Davison | Screenplay |
| David Dobkin | Screenplay |
| Richard Lyons | Original Music Composer |
| Andre Vaillancourt | Editor |
| Lori Cobe | Casting |
| Garett Griffin | Director of Photography |
| Julia Schklair | Costume Design |
| Ron Greenwood | Production Design |
| David M. Goldstein | Executive Producer |
| Stephen Hens | Line Producer |
| John A. Gomez | Art Direction |
| Alan C. Bosshardt | Key Makeup Artist |
| Paul Norman | Producer |
| Warren A. Stevens | Stunts |
| Patrick J. Statham | Stunts |
| Jay Mead | Stunts |
| Cole S. McKay | Stunt Coordinator |
| Brandon S. McKay | Stunts |
| Kurt D. Lott | Stunts |
| Dennis Keiffer | Stunts |
| Art Candebo | Stunts |
| Art Camacho | Stunt Coordinator |
| Joclynn Benjamin | Stunts |
| Norman Apstein | Director |
| Alan C. Bosshardt | Makeup Artist |
| David Dobkin | Original Story |
| Norman Apstein | Producer |
| Frank Koretsky | Associate Producer |
| Michael Koretsky | Associate Producer |
| Michael Krause | Set Decoration |
| David P. Barton | Special Effects Key Makeup Artist |
| Bryan Blair | Special Effects Key Makeup Artist |
| Denise Dillion | Special Effects Key Makeup Artist |
| Mark Garbarino | Special Effects Key Makeup Artist |
| Terese Heddon | Assistant Makeup Artist |
| Gary Pawlowski | Special Effects Key Makeup Artist |
| Shauna Giesbrecht | Makeup Artist |
| Lynn K. D'Angona | First Assistant Director |
| Charla Driver | Assistant Director |
| Beth Spanier | Second Assistant Director |
| Michelle Brischle | Carpenter |
| Shane Crawford | Props |
| Nick Davanzo | Construction Manager |
| Wayne Fisher | Property Master |
| Mark Geiger | Carpenter |
| Sandra Grass | Set Designer |
| John Hannon | Carpenter |
| Robert Porvazzo | Carpenter |
| Craig Smity | Carpenter |
| Steve Redondo | Boom Operator |
| Brian S. Tracy | Sound Mixer |
| Erik Flockoi | Boom Operator |
| John Graves | Supervising Sound Editor |
| Kevin McCarthy | Special Effects |
| Steven A. Adelson | Steadicam Operator |
| Robert P. Black | Grip |
| Rob Blake | Best Boy Grip |
| John A. Burke | First Assistant Camera |
| Mike Carter | Key Grip |
| Michael Choi | Second Unit Director of Photography |
| Rick Favazzo | Camera Operator |
| Stuart Forman | Second Assistant Camera |
| Steve Galvin | Electrician |
| Alexander Griffiths | Grip |
| G.W. Hatfield Jr. | Grip |
| David Kagen | Grip |
| Jean-Pierre Marangokis | Dolly Grip |
| Harry D. McCall | Grip |
| David McLaughlin | Grip |
| Ray Milazzo | Second Assistant Camera |
| Scott Moody | Gaffer |
| Anthony Newton | Dolly Grip |
| Yoshiharu Nushida | Still Photographer |
| Gerry O'Malley | Steadicam Operator |
| Moana Oliver | Grip |
| Oscar Luis Rodriguez | Electrician |
| R. Gern Trowbridge | Best Boy Electric |
| Thornton Tyson | Electrician |
| James Vititoe | Electrician |
| Nadja Dee Witherbee | First Assistant Camera |
| Laverne Caracuzzi | Assistant Costume Designer |
| Josh Oliver | Location Manager |
| Kevin L. Peachy | Location Manager |
| Sheri Lane | Script Supervisor |
| Schno Mozingo | Script Supervisor |
| Cynthia Dustin | Driver |
| William R. Jarnajin | Driver |
| Dale Lee | Transportation Coordinator |
| Schno Mozingo | Driver |
| Bill Novahon | Driver |
| Frank X. Sullivan | Driver |
| D.B. Wilson | Driver |
| Clint Wise | Driver |
| Marty Carlin | Other |
| Shane Crawford | Production Assistant |
| Sarah Denero | Production Assistant |
| Frank Di Sesso | Animal Wrangler |
| Linette Geisel | Production Secretary |
| Jay Lehrfeld | Production Coordinator |
| Michael McWade | Set Medic |
| Olivia Mears | Production Coordinator |
| Lisa Nelson | Production Assistant |
| Anne Pattison | Production Assistant |
| Brian Salay | Production Assistant |
| Tim Shoemake | Production Assistant |
| Ron Siegel | Production Assistant |
| Geraldine Takayoshi | Production Assistant |
| Paul Westerfer | Production Assistant |
| Bundy Chanock | Set Medic |
| Ron Vogel | Gaffer |
| Cynthia Ludwig | Camera Loader |
