Isn’t it fabulous how a simple, yet gorgeous clique of four would turn out to be not so nice and full of secrets after all, courtesy of a totally vindictive and nosy antagonist who only identifies himself or herself as A. Watch Pretty Little Liars Season 2 Episode 17: The Blond Leading the Blind online as soon as the very next episode of the show airs on January 23, 2012.

You can see the whole picture, A has everything else, resources you mean, about how he or she wanted to only have the best victory ever. Yet despite of that, A has been known to act as a more ambiguous character, especially when he or she saved Spencer from being attacked by Ian, or when A supplied the Liars with some snippets about Alison’s death and killer. Then there’s Dr. Sullivan, who serves as the girls’ therapist, who was able to take a look at A’s identity when A became one of her clients for a short time. This one’s unclear, but A actually knows about Alison‘s death. 'A' was in possession of a video Ian had filmed of himself and Alison engaged in an affair and also provided the girls with Alison's autopsy report even though she/he took out a specific page leaving the girls wondering what information was on it.

The girls have suspected a few people of being 'A': Toby (who was framed by 'A'), Ian (who was killed by 'A'), Jason (Alison's older brother), and Jenna. At first the girls believed 'A' and Alison's killer were the same person, but later concluded this was untrue. It was also revealed in a prequel episode of the Halloween before Alison went missing that Alison was also being tormented by a person who called themselves "A" as well, however it is unknown if the two A's are the same person. There’s more to A than meets the eye so don’t forget to watch Pretty Little Liars Season 2 Episode 17: The Blond Leading the Blind.