Dahlia Gillespie

Dahlia Gillespie is the main villain in the video game Silent Hill. She is the leader of the cult of Samael in the Notheastern town of Silent Hill. For the bulk of the game, she appears to be a helpful character, helping Harry Mason, the game's protagonist, fight Alessa, the apparent villain.

Cult Activities
At some point in her life, Dahlia became the leader of Silent Hill's cult. She may have been involved in the mysterious deaths of several people involved in developing Silent Hill into a resort town. She also started a drug trade, selling a hallucinogen to the tourists, made from a local plant named White Claudia, that was also used in the cult's rituals. she was assisted in this by Dr. Michael Kaufman, who was unaware of the cult connection and only wanted the drug money. But Dahlia's driving goal was to bring her god Samael into this world and bring paradise on Earth. She attempted to impregnate several young girls with the god, but none of them had the power or mental capacity necessary to survive the process.

Alessa
Dahlia then found out that her seven year old daughter Alessa had vast mental powers. Dahlia and the cult proceeded to perform the impregnation ritual on Alessa, which involved setting the girl on fire, in an upstairs room in the Gillespie house. Alessa was more powerful than even Dahlia knew, and managed to resist the ritual, splitting her soul in half and putting it in an infant's body, putting it on the side of the road where the childless Harry Mason and his dying found her and named her Cheryl, raising her as their own. Although the god was successfully impregnated in Alessa, the half of her soul left was not powerful enough to give birth to it. Dahlia cast a spell, keeping alessa alive and in extreme pain.