Everyone in Game of Thrones has been in everything, but Harry Potter might be the most prevalent example. Michelle Fairley plays Catelyn Stark in Game of Thrones, and also Hermione's mother in Harry Potter. David Bradley plays Red Wedding engineer Walder Frey in GoT, and also Hogwarts caretaker Argus Filch. Maybe most notable is Natalia Tena, who plays wildling Osha in the HBO series, and fan favorite Nymphadora Tonks in the Potter movies. Here's hoping Dobby shows up as one of the ice zombies.
The Game of Thrones showrunners included an easter egg in the first season that hints at Osha's witchy ties.
Not only is Osha making brooms with straw in this scene, but there's a broom featured prominently in several shots, including the one you see up there on the right. Yeah, there are brooms anywhere in the world where you can find dust and cat hair, but peep that sweeper and tell me that's not a witch-ass broom if you ever saw one. It couldn't get any more magical if you stuck a rainbow Lisa Frank sticker on it.
Remember when Jaime Lannister was a huge dick and you kind of hated him? It seems like so long ago that he was a repellent narcissist -- nowadays he's a repellent narcissist that you kind of like. The former was true especially early in the show, like the scene where Jaime doesn't even pretend to remember meeting one of Stark's men, Jory. The dude nearly lost an eye fighting beside Jaime, but the Kingslayer acts like M. Bison on any given Tuesday. To be fair, Jaime keeps it in mind for the next episode, when the Lannisters turn on the Starks.
Oh Jaime, you scoundrel. Too bad Jory didn't see that coming! I guess you could say he didn't have an eye for foreshadowing! Could these puns get any cornea? Okay, I'll stop.
But really, that's Breaking Bad levels of groundwork. Though I guess it wasn't really necessary, given that you have a better chance of winning the lottery while being struck by lightning under Haley's Comet than surviving Game of Thrones as a minor character.
Speaking of minor characters you might not have noticed...