Sebastian's Mad Hatter/Jefferson was last seen in Once Upon A Time on 2012. You think that length of time is enough for OUAT fans to forget about the villain-turned-hero character? Definitely not. In fact, some of them are even asking ABC to bring him back since the disappearance of the former Evil Queen ally wasn't that clear. Mad Hatter was kicked out of the show after Peter Pan enacted the curse to send Jefferson to the world where he's originally from.

Exactly one year ago, there were reports that Sebastian Stan will reprise his role. However, showrunner Edward Kitsis quashed such rumors saying Stan is "a very busy man" and "I don't know when he will be making his way toward us [on Once Upon a Time]."

Now, such talks resurfaced but this time it is the 31-year old actor himself who made the denial. In an interview with Zap 2 It, Stan said that although he doesn't rule out the possibility, there are a lot of factors that could get in the way.

"It's a hard question to sort of answer," Stan tells Zap2it while promoting "Captain America: The Winter Soldier." "I really enjoy that character and I have a lot of fun, and I enjoyed both of the showrunners and everyone on the show. Never say never. It's very possible. At the moment, it's not really on my radar, but you never know. I remain a big fan of everybody there.

"There's so many possibilities there," Stan says of The Mad Hatter. "One of the things those guys did so well -- out of the many things -- is they just reinvented all of those characters in a new way. They reintroduced them to a whole new generation. The Mad Hatter was never like that in just the cartoon. It remains to be seen."

Right now, Stan is busy promoting Captain America: Winter Soldier where he reprises his role as James "Bucky" Barnes / Winter Soldier:The film, which stars Chris Evans and Scarlett Johannson, will hit theaters on April 4.