Jared Leto and Mark Ruffalo wore masks and went to Comic-Con incognito this past weekend

By Michael Miller
Updated October 12, 2015 05:50 PM
Credit: Robert Kamau/GC Images; George Pimentel/Wireimage

You never know who might be hiding behind the masks at Comic-Con.

Mark Ruffalo and Jared Leto went incognito at the event in New York City this past weekend, donning some crazy masks and mingling with their unsuspecting fans.

Disguised in a giant baboon mask, Leto snapped pictures with a fan dressed as his Joker character from Suicide Squad.

“He had no idea. :),” the actor, 43, captioned.

The Incredible Hulk was also strolling around unnoticed around the convention, disguised as a cigar-smoking, mustached old man.

“Got to hide out and enjoy #comiccon2015,” the Avengers actor, 47, tweeted.

Ruffalo and Leto aren’t the first celebrities to take advantage of identity-concealing costumes at Comic Con. Last year, Daniel Radcliffe had a blast going to the event undercover as Spider-Man.

“It’s great to be able to put on a mask and interact with people who don’t know who I really am,” he told Entertainment Weekly. “I spoke in an American accent the whole time. I felt like a spy about to be found out at any moment.”

Andrew Garfield, The Amazing Spider-Man himself, also went disguised in his movie costume at Comic-Con 2013, and Game of ThronesMaisie Williams went as an anonymous webslinger last year.

Peter Jackson and Jack Black have also copped to attending the event in secret, as an evil jester and a Stormtrooper, respectively.

VIDEO: Now You Can Dress like Jared Leto, Thanks to Jared Leto!