Roberto Aguirre-Sacasa’s upcoming Pretty Little Liars reboot has the Mona Vanderwaal seal of approval. HollywoodLife recently caught up with Janel Parrish, who starred as Mona in the original Freeform series and its spin-off Pretty Little Liars: The Perfectionists, amidst her partnership with Shiseido Blue Project. When asked about her thoughts on the reboot, the star, 32, had nothing but kind words.