18 Actors You Totally Forgot Were In Marvel Movies

4. Natalie Dormer - Captain America: The First Avenger

It's funny looking back on Game Of Thrones actors' careers before they made their mark in the Seven Kingdoms. They're now all of such a phenomenal level of fame and recognition that it's hard to believe they actually existed before the show, for the most part.

That much is definitely true of Natalie Dormer, who was excellent on the show as Margaery Tyrell (taken way too soon), who used her wiles and intellect to position herself strongly in the Great Game before it all fell to pieces. But she definitely did exist before Margaery, as her appearance in Captain America: The First Avenger proves.

She turns up very briefly as a sultry private who takes her opportunity for a kiss with the big hero Captain America with both hands. Considering what she'd do as Margaery a few years later, it's a pretty fitting role.