Red Coat

"She's everywhere and she's nowhere."

- Mona about Red Coat

Red Coat is the secondary antagonist on Pretty Little Liars. Red Coat is considered to be the person who took over "A", and the "A-Team" from Mona Vanderwaal.

Season 2
UnmAsked

At the end of this episode, when Mona is sitting in her bed at the Radley Sanitarium, she receives a visit from someone wearing a red trench coat similar to Vivian Darkbloom's. It is implied that the person in the red coat is the leader of the 'A-Team' due to Mona saying 'I did everything you asked me to'. However, it has been confirmed that Mona was hallucinating this encounter with Red Coat, although Red Coat did visit Mona in Radley.

Season 3
 Blood Is The New Black 

We see Big A once more wearing a red hoodie. She is seen buying black hoodies and gloves for her workers. The store owner says to Red Coat: "So, are you buying this for a team?".

The Lady Killer

It is revealed that Toby is the second "A," and is also part of the A-Team. The dramatic irony is that the Liars don't seem to understand that both Mona, and the New A, are simply workers for the Big A. In the same episode, we also see Mona, (most likely) talking to Big A on the phone since Mona learns from the other person that there is a "change of plans". Since Big A is usually the one planning out all of the "A" schemes, it seems as if it really was her.

Misery Loves Company

When Hanna goes to the boutique, she sees in the window reflection a blond girl wearing a red coat (the same color as Vivian's jacket) across the street, watching her. When Hanna turns around, the girl walks off.

In the same episode, we see Mona and Toby talking in A's lair. Mona refers to someone by saying: "They need to understand she's in charge".

Out of the Frying Pan, Into the Inferno

Big A is seen in the "A" lair using a blowtorch to burn a doll representing Hanna. The girl was seen wearing a red jacket and has red nail polish on.

Dead to Me

Emily remembers more of what happened "That Night". She remembers seeing Big A while being attacked by a member of the A-Team. She remembers that Big A had blonde hair. Emily says that she (Big A) is the one in charge.

Hot Water

Spencer sees Big A after her date with Wren. She manages to get away before Spencer can catch up to her.

Out of Sight, Out of Mind

Big A appears to Emily for a second time while she is in her car waiting to meet up with Toby. However she quickly vanishes after Emily catches a glimpse of her entering Toby's workplace. It is presumed that Big A lured Emily by using Toby's phone.

I'm Your Puppet

Aria sees Big A while she, Hanna and Emily are in the morgue posing as candy strippers. Aria follows her, almost catching her before she slips into an elevator.

A DAngerous GAme

It is revealed that neither Mona or Toby know who Big A is. .

Alison DiLaurentis
In "A DAngerous GAme," we see that Alison the one in the Red Coat. Many fans believe this is the A-Team leader while others do not. The latter theory is supported by a quote Mona makes in the Season 4 promo, "I need to find out who Red Coat is. She tried to kill us all.". For the Alison DiLaurentis, see Red Coat

Appearances (10)
Season 2 (1/25)
 * UnmAsked (hallucination only)

Pretty Dirty Secrets (1/8)
 * CAll Security

Season 3 (8/24)
 * Blood Is The New Black
 * Misery Loves Company
 * Out of the Frying Pan, Into the Inferno
 * Dead To Me
 * Hot Water
 * Out of Sight, Out of Mind
 * I'm Your Puppet
 * A DAngerous GAme

Season 4 (TBA/24)
 * 'A' is for A-l-i-v-e

Theories/Suspects

 * There have been 4-5 main suspects to who is behind Big A. The following people have been suspected by the Liars:
 * CeCe Drake (seen with a Red Coat in luggage)
 * Alison DiLaurentis (due to Ali wearing a trench coat when hiding from A
 * The following people have been suspected by the fans:
 * Jenna Marshall (Being against the girls for blinding her)
 * Aria Montgomery (She "ssshhhs" in the opening sequence)
 * Others suggest that Alison's twin sister, Courtney is the one leading the A-Team. It is highly untrue because in this books she is dead and the writers are not planning on putting her into the show.