of Natalie. She then went on to appear as Vanessa in The WB's short-lived sitcom The O'Keefes. Parrish also appeared in shows and made-for-television films on the Disney Channel, and also guest starred in Fox's sitcom The Bernie Mac Show, Nickelodeon's children's comedy-drama series Zoey 101, and Fox's teen drama series The O.C.. Parrish then portrayed Bratz member Jade in the 2007 live-action film Bratz. The role was her first in a motion picture, as well as her first starring role. She also provided her voice for the Bratz 4 Real video game. In May 2007, shortly before the release of Bratz, she was signed to the William Morris Agency. She then landed a recurring role in the NBC supernatural drama series Heroes. Parrish played Mona Vanderwaal for the duration of the Freeform teen drama series Pretty Little Liars, based on the book series by Sara Shepard. Mona is introduced in the first season as a teenage outsider who uses her intelligence and resources to torment others anonymously. In March 2012, Parrish was promoted to a series regular for the third season, and stayed a regular for the remainder of the series. For her performance as Mona, she won Choice TV – Villain at the Teen Choice Awards four times from five nominations. In February 2012, Parrish returned to her stage roots in a production of the musical Spring Awakening. She portrayed Anna, while also understudying the lead female role of Wendla Bergmann. That same year, she had a supporting role in the romantic comedy-drama film Celeste and Jesse Forever. She subsequently guest starred in the CBS drama series Hawaii Five-0, playing the role of Rebecca Fine, an ambitious and strong-willed chemistry student, and made a guest appearance in Lifetime's fantasy legal drama series Drop Dead Diva as cheerleader Chelsea Putnam. Also in 2014, Parrish led the cast of the Lifetime thriller film High School Possession as Lauren Brady. The following year, she had a guest role as villainess Jillian Havemeyer in NBC's comedy-drama series The Mysteries of Laura. In 2017, she guest starred in Fox's procedural drama series Rosewood, playing Selena Monet, a young popstar. In November 2017, Parrish began portraying Sandy Dumbrowski in a Toronto production of Grease, alongside Katie Findlay. She then portrayed Lisa Wagner in the romance film Until We Meet Again, alongside Jackson Rathbone. Parrish co-starred as Margot Covey in the film adaptation of Jenny