World, meet Marienne! Season three of You finally dropped on Netflix on Oct. 15, and it introduced us to some new characters. One of them is Marienne, a smart, no-nonsense librarian played by Tati Gabrielle, whom you may recognize from her previous role as Prudence on Chilling Adventures of Sabrina. Now that Tati has made her debut on You, why not get to know more about her and what she’s all about? For starters, she’s a big Rihanna fan! Keep reading for more fun tidbits.