Development (pictured in 2010) was chosen by
Alloy Entertainment to write the
Pretty Little Liars novel series. The
Pretty Little Liars series of novels was first published in October 2006 and comprises 18 books, divided into four arcs and companion stories. The project was given to author
Sara Shepard by
book packaging company
Alloy Entertainment following the conception of the idea of a "
Desperate Housewives for teens". Shepard was chosen due to her having grown up in a town similar to the fictional Rosewood, where the series take place, and her online presence. The television adaptation was first planned for
The WB until the network shut down in 2006. A
pilot for
ABC Family was announced in June 2008, It also led Alloy Entertainment to extend the novel series beyond its original foreseen count of eight books. A
second season was unveiled by ABC Family on January 10, 2011. In June, the network announced that its
13 Nights of Halloween lineup would include a
Halloween-themed
Pretty Little Liars flashback episode, bringing the second-season episode count from 24 to 25. In December of that year, it was announced that the identity of "A" would be revealed in the second season's finale, which took place on March 19, 2012. The series'
third season was confirmed in November 2011 and broadcast between June 5, 2012, and March 19, 2013, consisting of 24 episodes. The series was renewed for a
fourth season in October 2012. It was broadcast between June 11, 2013, and March 18, 2014. The
fifth season was commissioned in March 2013, alongside the announcement of the spin-off series
Ravenswood, and consisted of 25 episodes, including a
Christmas-themed one. The special episode aired as part of the network's
25 Days of Christmas annual event. The season also included the series'
100th episode, which was celebrated by cast and crew in a private party on June 2, 2015. Before the season premiered, ABC Family renewed the series for two additional seasons of 20 episodes each, making it the network's longest running original series. The
sixth season was broadcast between June 2, 2015, and March 15, 2016. It did not include a holiday-themed episode and introduced a new opening sequence for the series. The
seventh and final season was broadcast between June 21, 2016, and June 27, 2017. It marked the return of
Charlie Craig, who worked on the second season, as executive producer and co-showrunner. The series' ending was confirmed by I. Marlene King and the main cast in August 2016, with the series finale being a two-hour event followed by a tell-all special with cast and crew.
Casting ,
Ashley Benson,
Lucy Hale,
Shay Mitchell, and
Sasha Pieterse, the protagonists of
Pretty Little Liars Casting for
Pretty Little Liars began in October 2009, The following month, the cast added
Ashley Benson as Hanna Marin,
Shay Mitchell as Emily Fields,
Laura Leighton as Ashley Marin,
Nia Peeples as Pam Fields,
Roark Critchlow as Tom Marin,
Bianca Lawson as Maya,
Alexis Denisof as Byron Montgomery and
Jean Louisa Kelly as a mother, with
Torrey DeVitto and
Sasha Pieterse in undisclosed recurring roles. Mitchell originally auditioned for the role of Spencer, but was suggested by the production crew to try Emily out, to whom she felt more connected. Louisa Kelly's appearance in the series did not materialize. In January 2010, Alloy Entertainment's website confirmed that Pieterse would portray Alison DiLaurentis and DeVitto would portray Melissa Hastings, and announced the casting of
Janel Parrish as Mona Vanderwaal and Igor Hudacek as Mike Montgomery;
Cody Christian later replaced Hudacek. In April,
Chad Lowe replaced Denisof in the role of Byron, while
Holly Marie Combs joined the cast as Aria's mother, Ella. Two actors were replaced following the pilot episode:
Keegan Allen replaced James Neate as Toby Cavanaugh and
Ryan Merriman replaced Carlo Marks as Ian Thomas. After the first season was broadcast, three other roles received new actors:
Andrea Parker took over Jessica DiLaurentis from
Anne Marie DeLuise,
Drew Van Acker took over Jason DiLaurentis from Parker Bagley, and
Natalie Hall took over Kate Randall from Natalie Floyd. Parker's casting for the second season was announced in April 2011. That month,
Annabeth Gish joined the cast as Anne Sullivan, a therapist hired by the girls' parents to help them. Also during the second season, Lawson had a minor starring role, being only credited in the episodes she appeared in. For the third season,
Tyler Blackburn and Parrish were promoted to the series' starring cast following their recurring appearances. Blackburn left the cast in the fourteenth episode of the fourth season to star in
Ravenswood and returned in the fifth episode of the fifth season.
Filming The series' pilot was filmed in
Vancouver in December 2009. The
Warner Bros. studio and backlot in
Burbank, near Los Angeles, were also used. Filming for the second season wrapped on December 16, 2011. In June 2012, the series was among projects selected for a California
tax credit. Filming for the fourth season wrapped on November 2, 2013. The fifth season was filmed between March 24 and November 20, 2014. Filming for the sixth season began on March 24, 2015. Production for the seventh season commenced on February 1, 2016, while filming took place between March and October 2016.
Music Michael Suby worked as the series'
score composer since its inception. American duo
the Pierces' 2007 song "Secret" was used as the series' opening theme, which was suggested by Ashley Benson.
WaterTower Music released a soundtrack album titled
Pretty Little Liars: Television Soundtrack on February 15, 2011; the release features songs by
the Fray,
Ben's Brother,
MoZella,
Katie Herzig, and
Colbie Caillat, among others. The show has also featured music by
Riley and the Roxies. To promote the series' third and fifth seasons respectively, American singer
ZZ Ward released
Pretty Little Liars-themed music videos for her songs "Til the Casket Drops" and "Last Love Song", included on debut studio album,
Til the Casket Drops (2012). ==Release==