With the US government looking to impeach her as CIA Director, Valentina explains to her assistant Mel that they need to tie up any loose ends. That includes, it turns out, tricking each of her shadow operatives – Yelena Belova, John Walker, Ava Starr, and Taskmaster – into taking each other out.

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!