Marvel Studios has unveiled the first teasers for the upcoming film Avengers: Doomsday. The first trailer, released December 23, revealed the return of a familiar face: Chris Evans as Steve Rogers. The second trailer debuted December 30, spotlighting Chris Hemsworth as Thor. The third, released January 6, teases the return of the X-Men, including Patrick Stewart as Professor X, Ian McKellen as Magneto, and James Marsden as Cyclops. Longtime Marvel collaborators Anthony and Joe…