Bonnie Cassidy was the main villainess ofepisode 3.02 "Demon Hunter" of Friday the 13th: The Series.
She was portrayed by Allison Mang.
Bonnie was part of a family of hunters who were tracking an ancient demon, which later killed both of her brothers, Vance and Travis, leaving just herself and her father, Faron. It was revealed in the episode that Bonnie had been kidnapped by a demonic cult and rescued by her family, but it was actually a ruse perpetrated by Bonnie.
Bonnie and Faron reached Curious Goods for safety, and it was at this point where Bonnie turned heel while the demon came after her; showing a distinct mark on her body that kept the demon under her control. Bonnie's heel turn was cemented when she flashed an evil smile, and to cover her tracks, the evil Bonnie demanded that Faron kill Micki, Jack, and Johnny; claiming that they're in league with the demon. She later confessed everything, stating that she wasn't kidnapped and she summoned the demon herself. Bonnie provided distractions that led to the demon killing her brothers, and she opened the vault to summon the demon in, but she was stopped by her father, who killed her with a cursed dagger, which also led to the demon being destroyed.