A young man and his girlfriend move into the man's old mansion home, where he becomes possessed by a need to control ancient demons.
Unfortunately the movie Ghoulies is not yet available on HBO Max.
| Directing | Luca Bercovici | Director |
| Writing | Luca Bercovici | Writer |
| Writing | Jefery Levy | Writer |
| Directing | Betsy Magruder | First Assistant Director |
| Directing | William James Murray Jr. | Second Assistant Director |
| Production | Cathy Mickel Gibson | Controller |
| Production | Jay Sedrish | Production Accountant |
| Production | Hugh McCallum | Unit Production Manager |
| Production | Aron Warner | Production Coordinator |
| Costume & Make-Up | Jill M. Ohanneson | Costumer |
| Costume & Make-Up | Donn Markel | Assistant Makeup Artist |
| Camera | David Boyd | First Assistant Camera |
| Camera | Danny Bilson | Second Assistant Camera |
| Camera | Michael Wilson | Additional Camera |
| Lighting | Kevin Brennan | Gaffer |
| Lighting | Kevin Galbraith | Electrician |
| Lighting | Dennis Clark | Electrician |
| Lighting | Joey Alvarado | Electrician |
| Lighting | Vance Trussell | Electrician |
| Lighting | Rik Faigh | Electrician |
| Lighting | Andrew Roach | Electrician |
| Lighting | Stephen Crawford | Electrician |
| Lighting | H. Herrington | Electrician |
| Camera | Ron McCausland | Key Grip |
| Camera | Ray Maichen | Best Boy Grip |
| Camera | Ray Maichen | Additional Key Grip |
| Camera | Michael Stocks | Grip |
| Camera | Wayne Stroud | Additional Grip |
| Camera | Michael Molnar | Additional Grip |
| Camera | Jerry Day | Additional Grip |
| Camera | Brian Dean | Additional Grip |
| Sound | Debbie Pinthus | Boom Operator |
| Art | Karen Kornbau | Co-Art Director |
| Art | Cindi Sowder | Co-Art Director |
| Art | Richard Alsop | Leadman |
| Crew | Milton Kahn | Public Relations |
| Production | Brad Arensman | Executive In Charge Of Post Production |
| Editing | Tom Meshelski | Assistant Editor |
| Editing | James Knight | Additional Editor |
| Editing | Tom Scurry | Additional Editor |
| Sound | G.W. Brown | Dialogue Editor |
| Sound | Ed Callahan | Dialogue Editor |
| Sound | John Kwiatkowski | Sound Effects Editor |
| Crew | John Richards | Score Engineer |
| Editing | Holly Austin | Negative Cutter |
| Crew | Roger George | Pyrotechnician |
| Costume & Make-Up | Judith Fiske Stockley | Contact Lens Technician |
| Costume & Make-Up | Tina Kline | Contact Lens Technician |
| Crew | Jeff Broadstreet | Set Production Assistant |
| Production | Don Diers | Production Assistant |
| Production | Vladimir Ferkelman | Production Assistant |
| Crew | Jeff Holder | Craft Service |
| Crew | Marion Gibbons | Thanks |
| Directing | Sharron Reynolds-Enriquez | Script Supervisor |
| Sound | Douglas B. Arnold | Sound Mixer |
| Production | Charles Band | Executive Producer |
| Production | Debra Dion | Associate Producer |
| Production | Jefery Levy | Producer |
| Sound | Richard Band | Original Music Composer |
| Sound | Shirley Walker | Original Music Composer |
| Camera | Mac Ahlberg | Director of Photography |
| Editing | Ted Nicolaou | Editor |
| Production | Johanna Ray | Casting |
| Art | Wayne Springfield | Production Design |
| Costume & Make-Up | Kathie Clark | Costume Design |
| Costume & Make-Up | Ronnie Specter | Makeup Artist |
| Costume & Make-Up | Ronnie Specter | Hairstylist |
| Costume & Make-Up | John Carl Buechler | Special Effects Makeup Artist |
| Visual Effects | John Carl Buechler | Creature Design |
