Keri Russell says her top secret character in Star Wars: The Last Jedi, and in usual Abrams fashion, the secrecy surrounding the December release is high.

We do know that the story will once again center around the sequel trilogy's four main characters: Rey (Daisy Ridley), Kylo Ren (Adam Driver), Poe Dameron (Oscar Isaac), and Finn (John Boyega). There's plenty of built-in intrigue with them alone, as Rey is positioned to be a new Jedi leader, Kylo has taken his place as Supreme Leader of the First Order, and Poe and Finn have become more entrenched in the Resistance. The rest of the film's expansive cast also has fascinated fans too, with Carrie Fisher one more time as Leia.

Related: Kylo Ren Is Already Failing Himself Before Star Wars 9 Begins

One of Star Wars 9's many new cast is The Americans star Keri Russell, but there has so far been no details given about her role - officially. So, when Russell made an appearance on The Late Show with Stephen Colbert, the host - who is a major Star Wars fan - tried to get some details about the movie from her. She wouldn't reveal the title or confirm any of Colbert's theories, but she did comment on her mysterious character's look by saying, "I do have the coolest costume, I will say that."

Keri Russell in The Americans Series Finale

Russell is understandably hesitant to give any further details on Star Wars 9, and her lack of describing the look of her character will only leave fans wondering what she looks like even more. Almost immediately after she was cast in the role, speculation quickly turned to wanting her to play a dark side Force or even a member of the Knights of Ren. There's also been some unsubstantiated rumors floating around that her character is a bounty hunter. Whatever the role is, all we do know is that Russell will further stand out thanks to her costume.

At this point, the best chance for any possible details on Russell's Star Wars 9 to be confirmed will be in a few weeks at Star Wars Celebration. It has already been confirmed that expected debut of the first trailer could show her in action.

MORE: When Star Wars 9's Title Will (Probably) Be Revealed

Source: The Late Show with Stephen Colbert