A young girl's arrival at a convent after the death of her parents marks the beginning of a series of events that unleash an evil presence on the girl and her mysterious new friend, an enigmatic figure known as Alucarda. Demonic possession, Satan worship, and vampirism follows.
| Actor | Role |
|---|---|
 Tina RomeroAlucarda / Alucarda's Mother | Alucarda / Alucarda's Mother |
 Susana KaminiJustine | Justine |
 Claudio BrookDr. Oszek / Hunchbacked Gypsy | Dr. Oszek / Hunchbacked Gypsy |
 David SilvaFather Lázaro | Father Lázaro |
| LLily GarzaDaniela Oszek | Daniela Oszek |
| TTina FrenchSister Angélica | Sister Angélica |
| BBirgitta SegerskogMother Superior | Mother Superior |
 Adriana RoelSister Germana | Sister Germana |
 Martin LaSalleBrother Felipe | Brother Felipe |
 Manuel DondéWagon Driver | Wagon Driver |
 Agustín IsunzaMonk | Monk |
| BBeatriz MartínezNun | Nun |
| AAntonia GuerreroNot listed | Not listed |
| AAdriana RiverollNot listed | Not listed |
| SSusan InmanNot listed | Not listed |
| AAlejandra MoyaNot listed | Not listed |
| PPaloma WoolrichNot listed | Not listed |
| MMarina IsoldaNot listed | Not listed |
| SSonia RangelNot listed | Not listed |
| CColombia MoyaNot listed | Not listed |
| DDamián DueñasNot listed | Not listed |