One day after casting former Disney star Ross Lynch as Sabrina's boyfriend, Harvey Kinkle, Netflix's Chilling Adventures of Sabrina has found the titular character's nemesis in The 100 actress Tati Gabrielle.

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According to Deadline, Gabrielle is set to join the series as Prudence, a student at the Academy of Unseen Arts and the de facto leader of a trio of witches known as the Weird Sisters. Her character is described as being beautiful and cunning, while also harboring a "deep, personal and possibly life-threatening" grudge against Sabrina Spellman. Gabrielle is perhaps best known for her work as Gaia on the CW's The 100, however, she has also featured in Hulu's Freakish and has recently lent her voice to the animated series Tarantula.

After it was announced that the CW had passed on Chilling Adventures of Sabrina, which had originally been developed as a companion series to Riverdale, Netflix quickly picked up the show for two seasons. Since the streaming service acquired the series, though, any plans to link the two shows together have seemingly been erased, as Riverdale actress Lili Reinhardt has confirmed the projects exist in "separate universes.”

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Debuting on Netflix, Chilling Adventures of Sabrina stars Kiernan Shipka as Sabrina Spellman, Ross Lynch as Harvey Kinkle, Michelle Gomez as Mary Wardwell/Madam Satan, Jaz Sinclair as Rosalind Walker, Chance Perdomo as Ambrose Spellman, Lucy Davis as Hilda Spellman, Miranda Otto as Zelda Spellman and Richard Coyle as Father Blackwood. A release date has not been set for the first season.