A

"A" is the main antagonist of the series. "A" is an anonymous character who sends threatening messages to Alison DiLaurentis, Aria Montgomery, Spencer Hastings, Hanna Marin, Emily Fields and Lauren McQueen.

Appearence
"A" makes appearances as a figure with black leather gloves, a black hood, dark pants, and dark shoes. Throughout the seasons, the story focuses on the mystery of "A". However, "A" has sported many different disguises, including the disguise of Red Coat, and The Black Widow.

Suspects

 * Noel Kahn
 * Luca Mendes