Pretty Little Liars' Troian Bellisario, Ashley Benson, Shay Mitchell, and Lucy Hale.
Horizon Scripted Television and Alloy Entertainment are set to begin production on the fourth season of ABC Family's hugely popular teen drama mystery thriller one-hour single-camera television series "Pretty Little Liars". Primetime Emmy Award nominated casting director Bonnie Zane and two-time Casting Society of America Artios Award nominee Gayle Pillsbury are casting actors for guest starring, recurring, and day player roles. Extras are being cast throughout the season. The network has ordered 24 episodes that will shoot beginning on March 15, 2013. The story is set in the fictitious town of Rosewood, Pennsylvania but shoots in Los Angeles. The first season of "Pretty Little Liars" premiered on June 8, 2010 becoming ABC Family's highest-rated series debut on record. The show airs on Tuesdays at 8/7c.

Starring in "Pretty Little Liars" is Teen Choice Awards winner Troian Bellisario playing the role of Spencer Hastings, the "smart girl" of the group; Ashley Benson portrays Hanna Marin, the "It girl" of the group; Shay Mitchell plays the role of Emily Fields, the "jock girl" of the group; and four-time Teen Choice Awards winner Lucy Hale plays Aria Montgomery, the "artsy girl" of the group. All four actresses won the Young Hollywood Awards in 2011 for the category of Cast To Watch. Actress and singer Sasha Pieterse plays the role of Alison DiLaurentis, the former queen bee who was killed a year prior to the beginning of the series. Pieterse makes appearances on the show in the form of flashbacks, dreams and hallucinations.

Details on how talent can submit for acting roles on "Pretty Little Liars", and registration information for extras can be found on the following casting post: