Alison DiLaurentis may have disappeared to kick off Pretty Little Liars, but her presence is still very much felt on the show.

She sends her friends mysterious messages and threatens to reveal their secrets. We often see Alison via flashbacks, as she was clearly the leader of her clique.

Alison DiLaurentis Quotes

Alison: It's like you went to sleep one night and forgot who I am.
Aria: I know exactly who you are. A.
Alison: Stop saying that.
Aria: Why should I? You're A! You stole the game from Mona and then you killed her because she had proof.

You think the truth is this big shiny disco ball of purity then go ahead and try it. See what it gets you. Telling the truth to the wrong person at the wrong time is how I ended up where I did. Take it from me you're always better off with a really good lie.

Alison

Pretty Little Liars Quotes

Mona played with dolls, I play with body parts. Game on bitches.

A

Emily: You know that A is always one step ahead of us.
Spencer: Yeah, maybe he...she...it...bitch is.