On the winter finale of "Quantico" season 1, the terrorists that are responsible for the bombing of Grand Central Station will finally reveal themselves. Instead of being satisfied with answers, the revelation would instead bring more questions on the table.

The fans have been eager to get to know Simon Asher's (Tate Ellington) character more ever since the pilot episode. Quantico's producer, Josh Safran, explained a little more info about Simon's character in an interview with Entertainment Weekly

"Simon's journey has always been such that he is repeatedly pushed to the side and sort of not given the credit he deserves, even though every time he proves himself, and yet at the first chance, people still push him away," he said. "This is a tipping point for his character, and you're gonna learn a lot more about Simon in the next episode. In fact, I might hasten to add that you will find out everything about Simon in the next episode," he continued.

Safran also teased that we would see more of Miranda as the show progresses. At the mean time, she's just recuperating but she will be back in action in the next episode.

According to On the Flix, Mark Pellegrino will guest star in the winter finale. He will play Clayton Haas. Along with Pellegrino, J. Mallory McCree, Marcia Cross, Eliza Coupe and Rick Cosnett will also be featured in the episode.

"Quantico" season 1 episode 11 is aired December 13 on ABC.