'Pretty Little Liars' Season 5 spoilers: There are 5 Liars nowAdd to Favorites | Pretty Little Liars
"[Alison's return] is going to affect them all individually, it's going to affect them as a group, it's going to affect their relationships with their young male and female partners," says EP Marlene King. "I think Season 5 is shaping up to be emotionally the most complex season we've had so far. We're having a lot of fun in the writers room, it's a completely different show. There are five pretty little Liars now."
Actress Sasha Pieterse adds that Alison is coming back to the group as "the victim" rather than the perpetrator now. "Alison has totally changed, they don't know anything that she's been through yet and we have to find out the pain that she's felt and what she's gone through," says Pieterse. "Welcoming her back is going to be not as easy as it should be."
One person who will not be a little Liar is Janel Parrish's Mona Vanderwaal. Parrish says that she's spoiling for a fight: "I want a Mona-Ali full-on girl fight. I love you Sasha, but I want a fight."
"Pretty Little Liars" Season 4 finale airs Tuesday, March 17 and Season 5 premieres Tuesday, June 10, both at 8 p.m. ET/PT on ABC Family.