Avengers: Doomsday will mark the debut of a powerful villain fans have been wanting to see for years now: Victor Von Doom. Our first look at Doctor Doom unveiled at a Disney Merchandise ExpoDisney held a Merchandise Expo in Shanghai, China, and they delivered a surprise that few could've seen coming. First Look at Promotional Art for Doctor Doom in ‘AVENGERS: DOOMSDAY’. Interestingly enough, it has been rumored that King Thanos will make an appearance in Avengers: Doomsday. Recently, the Russo brothers shared an Avengers: Doomsday teaser on their social media pages.