The Perfectionists: All the New and Returning Cast Members of the Pretty Little Liars Spinoff

Pieterse will be reprising her role as PLL's Alison DiLaurentis, only this time she's gone "from mean girl to mentor." DiLaurentis is working as a professor at Beacon Heights University whose "goal is to help students." "When she meets the perfectionists, she spots them out immediately," Pieterse told Teen Vogue. "She sniffs [them] out. She's like, 'These people are different than my other students. Something's happening here.'"