10 Actors You Totally Forgot Were In Harry Potter Movies

4. Freddie Stroma

In Game Of Thrones, Sam Tarly's younger brother - and heir to his family's seat - only really got a chance to blossom as a character in season 7, when his family rather foolishly aligned themselves against Daenerys and ended up being the stars of a vengeful barbecue.

In that season, brother Dickon Tarly was played by Tom Hopper, who will probably forever be remembered in the role. But he wasn't the first: originally he was played by Freddie Stroma, who had previously appeared in Harry Potter as arrogant Quidditch star Cormac McLaggen, who has also since gone on to star in Pitch Perfect and 13 Hours for Michael Bay.

He actually looks like an entirely different person in Thrones, so it's no wonder you might not have put the jigsaw pieces together...