Jared Leto and Mark Ruffalo were able to enjoy New York Comic Con by disguising themselves in elaborate costumes.

JARED LETO AND MARK RUFFALO ATTENDED NYCC

Leto posted a photo of his costume on Instagram, captioning it, “jaredleto #NYCC they had no idea :).”

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

 

He posed with another cosplayers at NYCC who was dressed as Leto’s character, The Joker, from the much anticipated film Suicide Squad. The photo received a lot of attention from fans who were all excited to know how the unknowing, Joker cosplayer would react if and when he saw it.

 

Ruffalo, who plays the Incredible Hulk in The Avengers, also attended NYCC in costume. He dressed as, a creepy, old man? He posted a photo of his costume on Instagram with the comment, “got to hide out and enjoy #comiccon2015.”

Got to hide out and enjoy #comiccon2015

A photo posted by Mark Ruffalo (@markruffalo) on

Ruffalo went to NYCC with his 14-year-old son, Keen, who was also in costume, although it was not as elaborate as his father’s.

Had a great time at #comiccon2015 NYC! Thanks ComicCon for the Hospitality. A photo posted by Mark Ruffalo (@markruffalo) on

Leto and Ruffalo are not the first to disguise themselves in order to attend Comic Con. The Hunger Games star Jennifer Lawrence told Entertainment Tonight that her co-star Josh Hutcherson had decided to walk around San Diego Comic Con in a creepy mask and then proceeded to scare her with it.

“He burst into my room and scared the life out of me,” Lawrence told ET.