 | Nastassja Kinski als Dr. Jennife Stillman |
 | Bobby Edner als Ben Miller |
 | Randy Quaid als Dr. Michael McCann |
 | Stephen Tobolowsky als Ed Turner |
 | Harry Groener als Sherrif Ken |
 | Alexander Gould als Young Ben |
 | Kate Fuglei als Waitress Carlita |
 | Olivia Marlow als Woman in Crowd |
 | Kathryn Fiore als Maggie Miller |
 | Debra Christofferson als Nurse Della Divelbuss |
 | Lee de Broux als Cook Harlan |
| Nik Dressbach als Buzzcut |
| Brandon de Paul als Frankie Carter |
| Neil Vipond als The Judge |
 | Brian Steele als The Creature |
| David Getz als Deputy #1 |
| David Doty als Nice Guy |
 | Robert Hill als Deputy #2 |
| Terence Gross | Director |
| Brian King | Story |
| Max Enscoe | Writer |
| Annie DeYoung | Writer |
| Colleen Camp | Producer |
| Stan Winston | Producer |
| Thomas M. Ficke | Stunt Coordinator |
| Shauna Duggins | Stunts |
| Shari Steinberg | Casting Associate |
| Julia Schklair | Costume Design |
| Betty Berberian | Set Decoration |
| Peter Borck | Art Direction |
| Jerry Fleming | Production Design |
| Stephen Mark | Editor |
| Charles Bernstein | Music |
| Samuel Z. Arkoff | Executive Producer |
| Lou Arkoff | Producer |
| Dan J. Birnbaum | Associate Producer |
| Steve Ecclesine | Line Producer |
| Buddy Epstein | Executive Producer |
| Brian J. Gilbert | Co-Producer |
| David S. Greathouse | Co-Producer |
| Scott Shapiro | Associate Producer |
| Robyn Rosenfeld | Executive Producer |
| Shane Mahan | Co-Producer |
| Andrea Lapins | Associate Producer |
| Carrie Iglehart | Associate Producer |
| Myke Michaels | Makeup Department Head |
| Stephanie Coffey | Makeup Artist |
| Richard Wetzel | Key Makeup Artist |
| Barbara Cantu | Key Hair Stylist |
| Dirk Craft | First Assistant Director |
| Jessica W. Leung | Second Assistant Director |
| Dan Schmit | Visual Effects Supervisor |
| Mark Vargo | Director of Photography |
