Pretty Little Liars fans may soon curse Detective Holbrook's return to Rosewood.

The True 'A's Identity Can Be Seen In Every 'Pretty Little Liars' Episode, Keegan Allen Explains

Holbrook (Sean Faris) will make his highly anticipated return during "Oh, What Hard Luck Stories They All Hand Me," and there's a good chance he will quickly reveal his true allegiance - whether it be to 'A', to Ali (Sasha Pieterse), both, or neither.

The cop spent several episodes allegedly taking care of his sick father, but if you believe that then I have a bridge to sell you. Although viewers will undoubtedly be busy questioning his motives over the course of 5B, the finale will apparently play a major role in illuminating his true plans.

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"There's some stuff coming up that's going to get intense for the season finale. [There's] going to be some bad things going down for some people who are loved on the show," Faris told Celebified, adding that "the season finale's by far my favorite, I got to have so much fun as an actor."

Will Holbrook help make life harder for the Liars, or will his character pull a 180 and actually extend an olive branch to Hanna (Ashley Benson), Aria (Lucy Hale), Spencer (Troian Bellisario), and Emily (Shay Mitchell)? Find out more when Pretty Little Liars airs Tuesdays at 8 p.m. ET on ABC Family.

Click the video below to see a preview for the series' next episode, "Oh, What Hard Luck Stories They All Hand Me."