 | Jeffrey Combs als Crawford Tillinghast |
 | Barbara Crampton als Dr. Katherine McMichaels |
 | Ken Foree als Buford 'Bubba' Brownlee |
 | Ted Sorel als Dr. Edward Pretorius |
 | Carolyn Purdy-Gordon als Dr. Roberta Bloch |
 | Bunny Summers als Neighbor Lady |
 | Bruce McGuire als Jordan Fields |
 | Del Russel als Ambulance Driver |
 | Dale Wyatt als Paramedic |
 | Andrew Lord Miller als Patient - Strait Jacket |
| John Leamer als Shock Technician |
| Regina Bleesz als Bondage Girl |
| Karen Christenfeld als Nurse |
 | Albert Band als Drunk (uncredited) |
| Stuart Gordon | Director |
| Dennis Paoli | Screenplay |
| Charles Band | Executive Producer |
| John Carl Buechler | Special Effects Coordinator |
| Robert Kurtzman | Special Effects |
| Richard Band | Original Music Composer |
| John Vulich | Special Effects |
| William Butler | Makeup Effects |
| Greg Nicotero | Special Effects |
| Mark Shostrom | Special Effects |
| Mark Shostrom | Makeup Effects |
| Brian Yuzna | Producer |
| Mac Ahlberg | Director of Photography |
| Gabriel Bartalos | Special Effects |
| Vanessa Theme Ament | Foley |
| Michael Avery | Executive Producer |
| H.P. Lovecraft | Novel |
| Angee Beckett | Costume Design |
| Anthony Barnao | Casting |
| G.W. Brown | ADR & Dubbing |
| Paul A. Sharpe | Sound Re-Recording Mixer |
| Remo De Angelis | Stunt Coordinator |
| Gilda De Guilmi | Hairstylist |
| Alfonso Avincola | Still Photographer |
| Giovanni Natalucci | Production Design |
| Gordon L. Day | Sound Re-Recording Mixer |
| Susan Alschuler | Publicist |
| Nunzio Colucci | Gaffer |
| John Kwiatkowski | Supervising Sound Editor |
| Francesca Roberti | Script Supervisor |
| Giancarlo Del Brocco | Makeup Artist |
| Gary Bolger | Sound Re-Recording Mixer |
| Elio Altamura | Property Master |
| Randy Vandegrift | Dialogue Editor |
| Hope Perello | Production Coordinator |
| Dennis Paoli | Story |
| Stuart Gordon | Story |
| Brian Yuzna | Story |
| Lee Percy | Editor |
| Luca Lachin | Second Assistant Director |
| Mauro Sacripanti | First Assistant Director |
| Rami Segal | Third Assistant Director |
