After her death, it is revealed that Noel Kahn and Jenna Marshall were also working for Charlotte. It is also revealed that her birth mother is Jessica's twin, Mary Drake, and her birth father is Ted Wilson, while Spencer is her sister. The series finale reveals that "A.D." is her sister and Spencer's twin, Alex Drake, whom Charlotte met after boarding the plane to France. She and Alex become very close after meeting, until Charlotte returned to Rosewood to play the game some more. Alex reveals that Charlotte never returned to her in London and the next time she saw her was when she visited her grave. Uber A, also known as A.D., is the third person to take over the identity of "A". In the show's series finale, Uber A's identity is revealed to be Alex Drake, Spencer's twin sister who was put up for adoption at birth. She desperately craves vengeance over the tragic passing of Charlotte DiLaurentis, who was her half-sister, and is trying to seek out the person responsible. Unlike Mona or Charlotte, Alex does not use any nicknames at first but instead signs their messages with emojis, which differentiates her from the A-Team. This causes Caleb to nickname her Amoji. However, in the sixth-season finale, she begins using the alias "A.D." and kidnaps Hanna, whom she believes is accountable for her sister's homicide. Hanna manages to escape Uber A's clutches and Alex goes after Alison, who the Liars suggested as guilty for her own cousin's murder. Uber A eventually finds out that Alison is innocent after searching her jacket. While Uber A does work on their own, she also works through a new "A-Team" of helpers, known to consist of Jenna Marshall, Sydney Driscoll, and Aria Montgomery, who are assisting them in completing the endgame. The series finale explains that Alex Drake was put up for adoption in exchange for a sum of money (for Mary), but then left at an orphanage by her adopted parents who were concerned for their image. She ran away from the orphanage at ten years old and eventually started working in a bar in London, where Wren Kingston mistook her for Spencer, revealing the existence of Alex's twin and Charlotte. Wren introduces Charlotte and Alex in an airport (just after Charlotte met Archer Dunhill) and they immediately connect, becoming very close in a short amount of time. After Charlotte is released from Welby, she tells Alex that she wishes to return to Rosewood and resume the game, but Alex says she shouldn't go unless she gets to come too, since she wants to meet Spencer.