The Identity of "A" Was Finally Revealed in the "PLL: Original Sin" Season Finale

Millwood High's ballet teacher is ruthlessly harsh with her students, but she's especially cold toward Faran. For starters, Madame Giry, who Faran accurately describes as "the adult version of Karen," very casually slips in a sugarcoated threat about disclosing Faran's medical history with scoliosis, which could jeopardize her chances at getting into her dream school.

Also, when Faran spots "A" creepily keeping tabs on her during her practice session and follows them, the next person she bumps into is none other than Madame Giry. Not to mention, her physical stature fits the person rocking A's overalls.

Seeing how freely "A" moved in and out of the school suggested A had a connection to someone with access there, but it turns out it was never Madam Giry.