| Person | Type | Job | Role(s) |
|---|---|---|---|
 Charles Hannawalt | Crew | Camera | Key Grip |
Charles T. Knight | Crew | Sound | Sound Mixer |
Christopher Holmes | Crew | Editing | Editor |
 Curtis Hanson | Crew | Writing | Screenplay |
Daniel Haller | Crew | Directing | Director |
 H.P. Lovecraft | Crew | Writing | Novel |
Harry Harvey Jr. | Crew | Directing | Script Supervisor |
Henry Rosenbaum | Crew | Writing | Screenplay |
Jack Bohrer | Crew | Production | Producer, Production Manager |
James H. Nicholson | Crew | Production | Producer |
 Les Baxter | Crew | Sound | Original Music Composer |
Lew Borzage | Crew | Directing | Assistant Director |
Norman T. Herman | Crew | Production | Production Executive |
Paul Sylos | Crew | Art | Art Direction |
Raymond Boltz Jr. | Crew | Art | Set Decoration |
Richard Bruno | Crew | Costume & Make-Up | Wardrobe Master |
Richard C. Glouner | Crew | Crew | Cinematography, Director of Photography |
 Roger Corman | Crew | Production | Executive Producer |
Roger George | Crew | Crew | Special Effects |
Ronald Silkosky | Crew | Writing | Screenplay |
 Samuel Z. Arkoff | Crew | Production | Producer |
 Sandy Dvore | Crew | Art | Title Designer |
Tamara Asseyev | Crew | Production | Production Assistant |
Jack Obringer | Crew | Costume & Make-Up | Makeup Artist |
Faith Schmehr | Crew | Costume & Make-Up | Hairdresser |
Al Simms | Crew | Sound | Music Supervisor |
C. Randall Berkeley | Crew | Art | Property Master |
Gene A. Talvin | Crew | Camera | Assistant Camera |
Jack Spicer | Crew | Lighting | Gaffer |
Richard King Sr. | Crew | Camera | Best Boy Grip |
Richard Wimpy | Crew | Camera | Camera Operator |
 Barboura Morris | Cast | Actress | Mrs. Cole |
 Beach Dickerson | Cast | Actor | Mr. Cole |
 Dean Stockwell | Cast | Actor | Wilbur Whateley |
 Ed Begley | Cast | Actor | Dr. Henry Armitage |
 Jason Wingreen | Cast | Actor | Sheriff Harrison |
Joanne Moore Jordan | Cast | Actress | Lavinia Whateley |
 Lloyd Bochner | Cast | Actor | Dr. Cory |
 Michael Fox | Cast | Actor | Dr. Raskin |
Michael Haynes | Cast | Actor | Guard |
Robert Nevin | Cast | Actor | Man in Cemetery (uncredited) |
 Sam Jaffe | Cast | Actor | Old Whateley |
 Sandra Dee | Cast | Actress | Nancy Wagner |
 Talia Shire | Cast | Actress | Nurse Cora |
Toby Russ | Cast | Librarian | |
Jack Pierce | Cast | Reeger | |
 Donna Baccala | Cast | Actress | Elizabeth Hamilton |
| Person | Type | Job | Role(s) |
