As "Avengers: Age of Ultron" prepares for filming in January, more confirmed cast members have been added to the roster which includes old favorites like Robert Downey, Jr. as Iron Man, Chris Evans as Captain America, and Mark Ruffalo as The Hulk. With new cast members like Elizabeth Olsen and James Spader confirmed to be joining the sequel, here is an updated cast photo gallery of "Avengers: Age of Ultron."