Mona Vanderwaal is one of the main characters of the upcoming series, Pretty Little Liars: The Perfectionists.
She is portrayed by Janel Parrish.
Formerly an unpopular girl, after the disappearance of Alison DiLaurentis, Mona Vanderwaal rose to the top alongside her best friend Hanna Marin. Together the two became unstoppable but where Hanna still kept her nice ways, Mona became another Alison. Mona feared of going back down to the bottom and made sure that she stayed popular no matter what the cost. She often tormented Lucas Gottesman, as well as made fun of Jenna Marshall, both of whom she was seemingly acquainted with in the past. Mona eventually became a victim of the infamous and mysterious "A" and joined the The Liars to put a stop to the awful game. However, in the season two finale, it is revealed that Mona herself is "A". She claims that she began torturing the four girls after three of them stole Hanna from her. She attempts to kill Spencer after giving her an offer to join the A-Team, which Spencer declined. After her reveal as the formerly anonymous stalker, Mona was sent to Radley Sanitarium for treatment. Here, CeCe Drake came to her asking for a partnership and the two became "A" together, along with a team of other "A's". But in the third season finale, Mona's game is stolen from her when CeCe kicks her off the team and Mona herself becomes a victim of "A". Together with the Liars, who still don't trust her, to bring down "A". After CeCe Drake is unmasked as the new "A", Mona tries to move on with her life, but still senses that CeCe may be up to her old tricks. After CeCe is released five years later, Mona kills her in self defense, leading to rise of a new "A", an Uber A, known as "A.D.", who seeks to uncover the identity of CeCe's murderer. "A.D." is revealed to be Alex Drake, the twin sister of Spencer Hastings and half-sister of CeCe Drake. Alex sends Wren Kingston to kill Mona, but Mona convinces them to let her join the A-Team again instead. Mona becomes an accomplice to Alex, but is secretly playing her, and double crosses her in the end, trapping her and Mary Drake in a personal dollhouse and finally becoming the ultimate and final "A".
- Mona is one of two confirmed characters from Pretty Little Liars to be starring in this series.
- Mona was the primary antagonist of the original series, Pretty Little Liars, known as "A".
- When Pretty Little Liars ended, Mona had won the "A" game and became the final "A" and kidnapped Uber "A", Alex Drake, and her mother Mary, locking them inside her own personal dollhouse. It is currently unknown how this will factor into the series.