Pretty Little Liars cast
The cast of "Pretty Little Liars" poses backstage with their award for Favorite Cable TV Drama during the People's Choice Awards 2016 in Los Angeles, California January 6, 2016. Reuters/Danny Moloshok

“Pretty Little Liars” Season 6 finale airs Tuesday on Freeform. Series showrunner I. Marlene King is teasing the special episode on Twitter, saying “#TwinsOnPLL gonna bend your mind.”

PLL fans of Spencer (Troian Bellisario) and Toby (Keegan Allen), Ezra (Ian Harding) and Aria (Lucy Hale), Caleb (Tyler Blackburn) and Hanna (Ashley Benson), as well as Alison (Sasha Pieterse) and Emily (Shay Mitchell) are all set to see their favorite “Pretty Little Liars” cast advance their characters’ lives.

Ezria and Spoby shippers seem to be in for a special treat, according to one of King’s most recent tweets. It remains to be seen whether one of these couples would make up the final act, which King described as a “mind bender.” If there is some good news on the Spoby ship, how would it affect Yvonne (Kara Royster)?

Tyler Blackburn is joining the PLL 6 finale anticipation on Twitter with a special clip for the fans:

King has more teasers for fans awaiting the “Pretty Little Liars” Season 6 finale. Various hashtags are in place, which could mean PLL fans are all set for a big Twitter party as they react to what happens next to #TwinOnPLL, #FianleFever and #Spoby.

“Please tell fans something about Spoby in the finale. Is there hope for them?” A fan asked King on Twitter. The show boss gamely replied. See the tweets below.

Who has a twin on PLL 6? This is one of the most important questions among the fans hours ahead of the “Pretty Little Liars” Season 6 telecast. Each PLL has a twin theory, but Designntrend seems convinced that Ryan Merriman's Ian has a twin. The site’s report details the clues and easter eggs in the show’s social media accounts.

Mrs. D (Andrea Parker) is another twin possibility based on the PLL 6 finale spoilers delivered by Variety. Is she the mind bender in the final act, after all?

“In the sixth-season finale, Ezra completes his book and old feelings between him and Aria resurface. Meanwhile, Spencer and Toby join forces to catch Sara; Caleb and Hanna grow wistful as he safeguards her; and Alison worries about her sanity,” reads the Freeform episode synopsis on TV.com.

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