Jared Leto and Mark Ruffalo are masters of disguise at NY Comic-Con

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Jared Leto and Mark Ruffalo Go Undercover at New York Comic-Con


If you were at Comic-Con in New York City over the weekend, you may have passed by Mark Ruffalo and Jared Leto without even knowing it.

The actors went to great lengths to go unrecognized at the event by wearing elaborate masks.

WATCH: Jared Leto Is Terrifying in Full Costume on Suicide Squad

Leto donned a four-eyed monster mask and thought it would be fun to pose with fans who were dressed like characters from his upcoming film, Suicide Squad. "They had no idea," he captioned the pics.

#NYCC they had no idea :)

A photo posted by JARED LETO (@jaredleto) on



The actor, who plays the Joker in the highly anticipated DC Comics movie,posed with a Harley Quinn lookalike and a guy dressed up as the Joker. "He had no idea," Leto tweeted.

Meanwhile, the Incredible Hulk was also roaming the streets. Ruffalo chose a creepy old man mask to cover up his identity. "Go to hide out and enjoy," The Avengers star Instagrammed.

Got to hide out and enjoy #comiccon2015

A photo posted by Mark Ruffalo (@markruffalo) on

Ruffalo also snapped selfies with other event attendees. "Had a great time at #comiccon2015 NYC!" he wrote. "Thanks Comic-Con for the Hospitality."

Had a great time at #comiccon2015 NYC! Thanks ComicCon for the Hospitality.

A photo posted by Mark Ruffalo (@markruffalo) on



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Jared Leto and Mark Ruffalo are masters of disguise at NY Comic-Con
AVENGERS: AGE OF ULTRON 2015 Marvel film with Scarlett Johansson as the Black Widow
AVENGERS: AGE OF ULTRON 2015 Marvel film with Chris Evans at left and Chris Hemsworth
Jeremy Renner arrives at a special screening of Marvel's "Avengers: Age of Ultron" at the SVA Theatre on Tuesday, April, 28, 2015, in New York. (Photo by Evan Agostini/Invision/AP)
NEW YORK, NY - APRIL 24: Chris Evans and Robert Downey Jr. pictured on Good Morning America as the cast of Avengers: Age Of Ultron invade Times Square in New York City on April 24, 2015. Credit: RW/MediaPunch/IPX
NEW YORK, NY - APRIL 24: Robert Downey Jr. pictured on Good Morning America as the cast of Avengers: Age Of Ultron invade Times Square in New York City on April 24, 2015. Credit: RW/MediaPunch/IPX
Jeremy Renner greets Scarlett Johansson upon arrival at the premiere for the film 'The Avengers Age of Ultron' in London, Tuesday, 21 April, 2015. (Photo by Joel Ryan/Invision/AP)
Chris Hemsworth poses for photographers upon arrival at the premiere for the film 'The Avengers Age of Ultron' in London, Tuesday, 21 April, 2015. (Photo by Joel Ryan/Invision/AP)
Scarlett Johansson poses for photographers upon arrival at the premiere for the film 'The Avengers Age of Ultron' in London, Tuesday, 21 April, 2015. (Photo by Joel Ryan/Invision/AP)
Jeremy Renner greets photographers upon arrival at the premiere for the film 'The Avengers Age of Ultron' in London, Tuesday, 21 April, 2015. (Photo by Joel Ryan/Invision/AP)
Chris Hemsworth poses with a young child dressed as the character Thor at the premiere for the film 'The Avengers Age of Ultron' in London, Tuesday, 21 April, 2015. (Photo by Joel Ryan/Invision/AP)
Director Joss Whedon poses for photographers upon arrival at the premiere for the film 'The Avengers Age of Ultron' in London, Tuesday, 21 April, 2015. (Photo by Joel Ryan/Invision/AP)
Stan Lee arrives at the Los Angeles premiere of "Avengers: Age Of Ultron" at the Dolby Theatre on Monday, April 13, 2015. (Photo by Matt Sayles/Invision/AP)
LaTanya Richardson Jackson, left, and Samuel L. Jackson arrive at the Los Angeles premiere of "Avengers: Age Of Ultron" at the Dolby Theatre on Monday, April 13, 2015. (Photo by Matt Sayles/Invision/AP)
Chris Evans arrives at the Los Angeles premiere of "Avengers: Age Of Ultron" at the Dolby Theatre on Monday, April 13, 2015. (Photo by Jordan Strauss/Invision/AP)
NEW YORK, NY - APRIL 27: Actor Robert Downey, Jr. (L) and Jeremy Renner Join Marvel Entertainment Executives Ring The NYSE Opening Bell In Celebration Of 'Marvel's Avengers: Age Of Ultron' at New York Stock Exchange on April 27, 2015 in New York City. (Photo by Brad Barket/Getty Images)
NEW YORK, NY - APRIL 24: (R-L) Avengers Robert Downey Jr. (Iron Man), Chris Evans (Captain America), Mark Ruffalo (The Hulk) and Jeremy Renner (Hawk Eye) takeover Time Square on Good Morning America, April 24, 2015 in support of Marvel's Avengers: Age of Ultron, in theaters Friday, May 1. (Photo by Bryan Bedder/Getty Images for Walt Disney Studios)
Actor Mark Ruffalo attends a special screening of Marvel's "Avengers: Age of Ultron" at the SVA Theatre on Tuesday, April, 28, 2015, in New York. (Photo by Evan Agostini/Invision/AP)
Actor Aaron Taylor-Johnson and wife Sam Taylor-Johnson attend a special screening of Marvel's "Avengers: Age of Ultron" at the SVA Theatre on Tuesday, April, 28, 2015, in New York. (Photo by Evan Agostini/Invision/AP)
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Masked celebrities at such events is quickly becoming a trend. The Hunger Games star Jennifer Lawrence revealed to ET at San Diego's Comic-Con that her co-star, Josh Hutcherson, was walking around the event with a mask, and later used it to scare her.

WATCH: Justin Bieber Licks Knife, Wears Clown Mask in Crazy Photo Shoot

"He burst into my room and scared the life out of me," she exclaimed.

This all goes to show, you never know who's behind those masks at Comic-Con.

Josh Hutcherson Sneaks Into Comic-Con in Mask, Scares Jennifer Lawrence

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