| Vincent Price | Nicholas / Sebastian Medina |
| John Kerr | Francis |
| Barbara Steele | Elizabeth |
| Luana Anders | Catherine |
| Antony Carbone | Doctor Leon |
| Patrick Westwood | Maximillian |
| Lynette Bernay | Maria |
| Larry Turner | Nicholas as a child |
| Mary Menzies | Isabella |
| Charles Victor | Bartolome |
| Director | Roger Corman |
| Producer | Samuel Z. Arkoff; Roger Corman |
| Writer | Richard Matheson; Edgar Allan Poe |
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