|This article centers around the "A-Team," the team of people affilated with A. For another version check out "A," the single individual, Red Coat and The Black Widow, the accomplice of the Leader, Charlotte DiLaurentis..|
|“||You're not the only genius in this car. You bitches underestimated me!||”|
— A (Mona Vanderwaal)
The A-Team is a secret group of people who use the pseudonym "A" to threaten Alison DiLaurentis, Aria Montgomery, Hanna Marin, Spencer Hastings, and Emily Fields. Mona Vanderwaal was a member of the "A-Team", as revealed in "UnmAsked", Toby Cavanaugh was a member of the "A-Team", as revealed in "The Lady Killer", Spencer Hastings was also a member of the "A-Team", as revealed in "I'm Your Puppet". As revealed in the episode "The First Secret", the A-Team was created in October 2008.
When Mona was revealed to be Original "A", she tried to convince Spencer Hastings to join, what she referred to as the "A-Team". She also alludes to it when she says "You had to earn it, the right to be a part of it". After, Spencer asks her what she's going to do now, because "doesn't 'A' always have a plan?" Mona replies with "Yes, she does", refering to herself. After Mona was admitted into Radley Sanitarium, we hear in her mind that everything is going exactly as they planned. A mysterious person in a red jacket visited her and Mona told her that she did everything she told her to do. From that moment, Red Coat stole the game from her.
When Toby Cavanaugh was revealed to be helping Mona, there were plans alluded that referred to a mysterious phone call, that never got made. Also, it was mentioned that if he and Mona knew that Nate was going to have Garrett Reynolds "off the hook" for Maya's murder then they would have done things differently. Toby's motives for being involved in the "A-Team" were to "keep Spencer safe" as revealed in "A DAngerous GAme".
Members and Motivations
- Mona Vanderwaal - Mona was the original and first "A", motivated by a need for revenge due to the bullying she received from Alison.
- Lucas Gottesman - Alison used to bully him and The Liars did nothing to stop her, but like Melissa, Lucas is a helper of the A-Team only due to being blackmailed by Mona. He gave the massage to Emily in "Touched by an 'A'-ngel". It's assumed he joined the team some time in Season 2, and left the team in Season 3.
- Melissa Hastings - She was mad at Alison for trying to steal Ian from her and thought Spencer killed Alison so she buried the body to protect her. Melissa was the Black Swan (blackmailed by Mona).
- Charles DiLaurentis - Charles is the one who took game from Mona while she was in Radley, nicknamed Big A. Charles had presumably started the team. Charles is current "A". Charles is revealed to be a transgender, Charlotte DiLaurentis, aka CeCe Drake. she took the game over from Mona to plan her own revenge after years of being trapped in Radley and neglected by her family.
- Mona Vanderwaal - A new "A" took her place following the events of Season 2. In the Season 3 finale, Mona had revealed that Red Coat was her accomplice for a brief period of time, but Red Coat later took charge over her. From Season 4 onwards, Mona has been expelled off the A-Team and became a target.
- Toby Cavanaugh - Joined after "Stolen Kisses" to protect Spencer and find more information (expelled after A DAngerous GAme).
- Spencer Hastings - Joined in "I'm Your Puppet" to find information about Toby and Red Coat (expelled after A DAngerous GAme).
- Darren Wilden - Wilden was the Queen of Hearts along with Melissa on the Halloween Train. He also received a message from 'A' telling him to attend "our little barbeque" referring to the lodge fire. It is unknown, though, if he was a real member of the team or a blackmailed member like Lucas and Melissa.
- Sara Harvey - Charles had her as a decoy Red Coat and The Black Widow. Why she became a part of the team is unknown.
- Noel Kahn - He was spying on the girls for Charlotte and assisted her while the Liars were trapped in A's Dollhouse.
The A.D. Team
- Alex Drake - Also known as Uber A or A.D, she's deadlier than both Mona and Charlotte. Her initial mission is to find out who is Charlotte's Killer and get revenge, but eventually become more focused on tormenting the Liars. She also wanted to switch places with Spencer so she could experience her life.
- Wren Kingston - He gave Alex information on the Liars and assisted in impregnating Alison with his sperm and Emily's eggs. He also got Mona out of Welby to join Alex's team.
- Jenna Marshall - Revealed in Wanted: Dead or Alive, as Charlotte's friend. Jenna had gotten to know Charlotte and has bonded with her. Enticed with thought of another chance at eyesight, she did things for Alex though she didn't know who she was.
- Sydney Driscoll - Revealed in Power Play, claims she does not want to be on the "losing" team. Alex blackmailed her with the knowledge of her stealing from a bank.
- Aria Montgomery - Being blackmailed because of an un-filed police report she wrote off screen during Season 4, accusing Ezra of statutory rape and taking advantage of her while in a state of power. If shown to the police, he could've gone to jail.
- Mary Drake - Assisted with keeping Spencer locked up though see had no choice.
- Mona Vanderwaal - Tasked with watching the girls in a "Melissa mask" before assisting in kidnapping Spencer.
A's lair is "A's" base of operations. It is where "A" would meet up with the other members and would create their plans. The original lair was located in Room 2 of the Lost Woods Resort. The room contains pictures, newspaper clippings, and dolls resembling the girls and Alison. There is a hole in the wall behind a picture frame so "A" could watch Alison in Room 1 next door. Spencer concludes that "A" was stalking Alison. This is where Spencer figures out Mona is "A", due to the gum wrapper and the cashmere sweaters.
Once the original lair was discovered by Spencer, the other "A"s cleared out the room and began to find and rent a new room elsewhere for the lair. We know the new lair is "Room A" of its building, and is basically an exact replica of the original lair. Mona was seen in the lair in "The Lady Killer" discussing plans with another "A", presumably Toby. In "Dead to Me", Spencer finds the second lair, with the help of a private investigator, but it is empty when she arrives.
The lair was housed in an R.V., which Big A got Toby to hand over to them via blackmail.
In "Now You See Me, Now You Don't", Big A's lair appears to be revealed, upstairs in an abandoned building in the town of Ravenswood. The lair is run by Ezra Fitz. The room contains pictures of everyone, a payroll, a closet of black suits, newspaper clippings, letters and laptops with cameras that have street view in order to monitor them at all times. However in in "Free Fall" it is revealed Ezra is not "A", and that he was just writing a true crime book about Alison. He was using all the technology to see if he could get to the bottom of the case.
In "Miss Me x 100", Big A's lair is revealed. She is setting up an apartment in Rosewood with Police radio equipment, the familiar dollhouse and dolls, the Black Widow outfit and other packed boxes.
In "Welcome to the Dollhouse", it is revealed that Big A (Charles) built a dollhouse, which they used to kidnap, Mona, Sara, Aria, Hanna, Spencer, and Emily. He also used the Campbell Farm as a temporary lair, in order to frame Andrew.
- The betrAyer and the second member of the A-Team is revealed to be Toby. Multiple endings were shot to avoid the real one from being leaked. Alternates for the betrAyer role were Caleb and Paige. These alternate endings are available on the Season 3 DVD.
- Some fans suspect Aria of being "A" because she was the last person to have Vivian Darkbloom's (the alter ego of Alison DiLaurentis) red trench coat, which Red Coat has been known to wear.
- It's further speculated that Jenna Marshall is on the "A-Team" because during "UnmAsked", she meets an unseen person in the park and hands them an unknown item with the instructions "you know what to do". Some believe this person to be the same person who visits Mona at the end. This might make sense if Mona and Jenna formed a friendship after Halloween 2008, as alluded to in "The First Secret". In "A DAngerous GAme", It was revealed that Shana Fring is the person Jenna met at the park.
- The leader of the team could be the mystery person seen at the end of "UnmAsked" wearing a red coat, just as it could be the same person seen at the end of "Blood Is The New Black", while wearing a red hoodie buying black hoodies and gloves from a man, who asks whether "A" is buying this merchandise for a team. But after the reveal of Charles, it is assumed both Charles and Red Coat stole the game from Mona.
- Producers revealed Mona didn't do two of the things "A" did in the first two seasons. This is most likely Emily's massage (she was with Hanna) and killing Ian (she has no known connection to him, and he clearly knew the person that pushed him off the bell tower). The person that gave Emily that massage was Lucas revealed by Mona in "'A' is for A-l-i-v-e". Alison is revealed to have pushed Ian in "A is for Answers".
- In "The Kahn Game", we see "A" coming to Mrs. Pillsbury (who is obsessed with cats) to rent a room/apartment. Mrs. Pillsbury names "A" as "dear" and talks to her which makes it obvious that this "A" is female. (It is possible it was Mona, since she was still on the team then)
- It's possible that the leader wears red while the recruiters wear black, such as the person who visited Mona at Radley.
- We have seen "A" or someone presumed to be "A", in many different disguises: the Red Coat, the Zombie Baby Doll Stalker costume and the Queen of Hearts costume. This leads us to question the size of the A-Team.
- Hanna finds the key to "Room A" in "Misery Loves Company".
- Ashley Benson said that there are a few members of the "A-Team" and we will know who they are during season three.  She talked about Toby and Spencer.
- "A" carries around Vivian Darkbloom's driver license and uses it.
- In Season 4, Toby is a victim of the "A-Team" because "A" knows what happened to his mom and uses that information to get Toby to steal the lair.
- "A" was revealed to be Charles/Charlotte DiLaurentis aka CeCe Drake.
- It was revealed that "A" has only one helper, and it was also revealed that Red Coat and The Black Widow are the same person.
- This person was then shown to be Sara Harvey, who was working with Charlotte at the time. It is unknown what other identities Charlotte made Sara dress up as.