New York Comic Con is home to plenty of people wearing masks as part of cosplay or as a requirement of their regiment of Stormtroopers. In two instances this past weekend, though, those masks were actually used to provide anonymity for two comic book movie megastars so they could walk the show floor in peace. Yep, Mark Ruffalo (a.k.a. the Hulk) and Jared Leto (the Joker in next year's "Suicide Squad") revealed via social media that they were indeed at the convention -- and they were unrecognizable.

Mark Ruffalo posted a picture of him in his NYCC disguise on Instagram.

Got to hide out and enjoy #comiccon2015 A photo posted by Mark Ruffalo (@markruffalo) on

Jared Leto posted a picture of his mask as well...

#NYCC they had no idea :) A photo posted by JARED LETO (@jaredleto) on

And he even took it a step further by posing with a guy cosplaying as his Joker.

He had no idea. :) #NYCC2015 pic.twitter.com/zFWsrTbSGv- JARED LETO (@JaredLeto) October 11, 2015