| 角色 | 饰演者介绍 |
| H.P. Lovecraft (wraparound) | 杰弗瑞·考姆斯 |
| Librarian (wraparound) | Tony Azito |
| Attendant (wraparound) | Juan Fernández |
| Cabbie (wraparound) | 布莱恩·尤兹纳 |
| Edward De Lapoer (part 1) | 布鲁斯·佩恩 |
| Nancy Gallmore (part 1) | Belinda Bauer |
| Jethro De Lapoer (part 1) | 理查德·林奇 |
| Clara (part 1) | Maria Ford |
| Jethro's Son (part 1) | Peter Jasienski |
| Emma De Lapoer (part 1) | Denice D. Lewis |
| Doctor (part 1) | William Jess Russell |
| Villager (part 1) | Vladimir Kulich |
| Dr. Madden (part 2) | 大卫·沃纳 |
| Emily Osterman (part 2) | Bess Meyer |
| Lena (part 2) | 米莉·佩金斯 |
| Dale Porkel (part 2) | 丹尼斯·克里斯托弗 |
| Sam (part 2) | Gary Graham |
| Mr. Hawkins (part 2) | Curt Lowens |
| Policeman (part 2) | James Paradise |
| Policeman (part 2) | Sebastian White |
| Sarah (part 3) | Signy Coleman |
| Paul (part 3) | Obba Babatundé |
| Mr. Benedict (part 3) | Don Calfa |
| Mrs. Benedict (part 3) | Judith Drake |
| Peter Gallmore (uncredited) | Jeffrey Scott Grice |
