We have a Hulk... poster.
Just one day after Robert Downey Jr. revealed an Iron Man-centric Avengers: Age of Ultron poster, his Science Bro. Mark Ruffalo has now revealed one featuring his character of the Hulk. Unlike Downey's post, Ruffalo doesn't tease anything besides the poster -- but then again, the Hulk isn't known to be verbose. Take a look
Look for more posters of the major cast members of Avengers: Age of Ultron in the coming days, to form an inter-locking poster akin to the one released last summer during Comic-Con International: San Diego.