Marvel’s “Avengers: Age of Ultron” is gearing up to be one of the biggest movies of 2015. Despite fans clamoring for any and all spoilers, one character remains shrouded in mystery – Paul Bettan’s “Vision.” Apparently the British actor is no stranger to keeping secrets about his character. He recently revealed he’s been keeping his lips sealed for longer than anyone would have imagined.

Bettany sat down with his "Mortdecai" co-star Johnny Depp to promote their upcoming movie during an interview with Collider. The conversation with the 43-year-old actor turned to "Avengers," where he dished that keeping the origin and image of Vision has been very important to him.

“I can tell you that I’ve kept it a secret for about three years,” he revealed when asked for details about the super hero. “I’ve known that this was going to happen and I’m not about to give the game away right now because we’ve managed to keep it really under wraps. There are only a few images out there but it’s… It’s pretty grand.”  

Bettany isn’t kidding. Despite being one of three (four if you count James Spader’s villain Ultron) new super heroes being introduced in the upcoming sequel, Vision was left out of both trailers for “Age of Ultron.” However, a Reddit user recently leaked concept art for Black Widow, Ultron and Vision. The images came with character details that allege Vision is created by both Bruce Banner (Mark Ruffalo) and Tony Stark (Robert Downey Jr.). In the comics, Vision is an artificial intelligence robot created by Ultron but, given Bettany’s casting, it makes a lot more sense for him to be created by Stark. Bettany has voiced Ironman’s A.I./Butler J.A.R.V.I.S. since the first “Ironman” movie in 2008, making him one of the longest-running cast members of the Marvel Cinematic Universe.

Prior to the leaked images, the only official glimpse of the character came in the form of a distant drawing of him, complete with a really cool cape, in a mural that debuted at San Diego Comic-Con in 2014. It’s unclear if Vision will simply be J.A.R.V.I.S. 2.0 or if Bettany will change his voice to become a completely different character altogether. After all, if "Ant-Man" has taught fans of the Marvel Cinematic Universe anything, it’s that comic book knowledge can only count for so much.