Wondering if Mona (Janel Parrish) and Melissa Hastings (Torrey DeVitto) will be in upcoming Pretty Little Liars episodes? Fear not Pretty Little Liars fans, you can expect to see both of them soon.

One of the writers, Joseph Dougherty King, confirmed on Twitter that Mona will be in the Halloween episode “This is a Dark Side” which airs on October 23 at 8 p.m. EST. In the clip below watch Mona creepily interact with presumably a member of the A Team.

Do you think she’ll end up aboard the Halloween party train? Do you think she’s the mysterious person in the joker costume in the clip from a few days ago? After all she does say she loves Halloween. “All the dressing up, being other people, tricks and treats – treats that turn into tricks. It’s better than Christmas!”

What did you think of the videos?

Meanwhile in an interview with the Huffington Post, Torrey DeVitto reveals that she will be back in the January episodes of Pretty Little Liars but not the Halloween special.

For those who love both Pretty Little Liars and The Vampire Diaries, she admits her husband Paul Wesley, star of The CW’s The Vampire Diaries, has never seen a full episode of the ABC Family show, but hints that he may have an upcoming role. “I’m like, ‘Paul. What if you were A?’ He’s so funny.” If Paul Wesley was on Pretty Little Liars (looking unlikely) who would you want him to play?

Don’t forget to tune into ABC Family on October 23 at 8 p.m. EST for the Halloween special episode.

Photo Credit: ABC Family