Whether the "mystery actor" is a name already known or one that hasn't yet surfaced, the photo revealed by MCU Film News sent fans into a wild run of speculation. The guesses about who the character/actor was began running rampant,

Avengers: Doomsday breaks the internet again with a behind-the-scenes tease, sending fans into detective mode!

Arguably the most highly anticipated of the upcoming Marvel movies is Avengers: Doomsday, which will be the shared universe's next big crossover. The Russo Brothers shared the first set photo from that blockbuster,