Season 4

Season 4 takes place immediately where Season 3 left off. Pretty Little Liars got renewed by ABC Family on October 4,2012. 

It is slated to air during the summer 2013 and winter 2014 and it will consist of 24 episodes.

Spencer Hastings
N/A

Emily Fields
N/A

Hanna Marin
According to Marlene King: Hanna is now A's main target.

Aria Montgomery
Ezra will be arrested for having sex with Aria, though it might be a dream.

Main Cast

 * Troian Bellisario as Spencer Hastings
 * Lucy Hale as Aria Montgomery
 * Ashley Benson as Hanna Marin
 * Shay Mitchell as Emily Fields
 * Ian Harding as Ezra Fitz
 * Keegan Allen as Toby Cavanaugh
 * Tyler Blackburn as Caleb Rivers
 * Janel Parrish as Mona Vanderwaal
 * Laura Leighton as Ashley Marin
 * Holly Marie Combs as Ella Montgomery
 * Sasha Pieterse as Alison DiLaurentis/Red Coat
 * Chad Lowe as Byron Montgomery

Recurring/Guest Cast

 * Lindsey Shaw as Paige McCullers
 * Tammin Sursok as Jenna Marshall
 * Julian Morris as Wren Kingston
 * Bryce Johnson as Darren Wilden
 * Torrey DeVitto as Melissa Hastings
 * Lesley Fera as Veronica Hastings
 * Drew Van Acker as Jason DiLaurentis
 * Vanessa Ray as CeCe Drake
 * Nia Peeples as Pam Fields
 * Brendan Robinson as Lucas Gottesman
 * Aeriel Miranda as Shana
 * Cody Allen Christian as Mike Montgomery
 * Andrea Parker as Jessica DiLaurentis

Season Notes
These are spoilers for the entire season as a whole and may not actually occur during this episode.
 * The girls may go back to the lodge to search for clues.
 * The writers are planning on having Mike to have an appearance this season. He will return in episode 5.
 * Zack will return. He will return around episode 4.
 * Mona is now being targeted by A.
 * Mrs. DiLaurentis moves back to Rosewood with an agenda, living in her old home, alone, and will become a part of the mystery.
 * There will be some dissension between the girls as 3 of them (Mona, Hanna and Spencer) saw Ali and the other 2 (Aria and Emily) didn't.
 * Hanna will be A's main target when the show returns for Season 4.
 * The alliance between Jenna, Shana, and Melissa will be explored.
 * Lucas, CeCe, and Wren  are set to return in Season 4, and Jason will return also. Shana will return in episode 2.
 * According to Bryan Holdman, Mona was kicked from the A-Team and will somewhat become part of the group in Season 4.
 * Marlene King will pay homage to the Alfred Hitchcock film "The Birds" in season 4.
 * It was confirmed by Oliver Goldstick that Paige will be important in the first four episodes.
 * Oliver Goldstick stated in a TV Guide Interview about the possibility of Alison's twin: "We're not exploring that."
 * We will find out who the Queen of Hearts is.
 * Oliver Goldstick stated in an EW interview that "there’s a Toby-Alison flashback coming up, which is really cool, in the beginning of season four "
 * Marlene King and Lucy Hale confirmed that there will be a season 5, after season 4.
 * Gabe's partner, Linda Tanner, will appear in Rosewood.
 * Sasha Pieterse (Ali) will have more screen time.
 * We may see some old (deceased) characters, based on Maya Goldsmith's tweet.
 * On April 30, 2013, Pretty Little Liars tweeted that Tyler Blackburn (Caleb) would head for Ravenswood.
 * The girls and Mona go in A's mobile lair and go on the computer (Promo)
 * Emily may get hit by a car (Promo)
 * Red Coat may have set the girls up with the trunk and what's inside (Aria's quote in promo).
 * A will try to drown Paige (Promo).
 * Keegan Allen said in a PLL Alloyentertainment interview that there will be a Toby and Alison flashback. We also get to see Toby (pre-Jenna) when he was actually friends with Alison.
 * Spoby will go back to the lodge to investigate.
 * Toby still “has an axe to grind with the girls.”