Maisie Williams and actress Sophie Turner (who plays her on-screen sister, Sansa Stark) clicked instantly when they met at Game of Thrones auditions, and they've become genuine besties in the years since. "I had to do the same scene about five times with three different girls auditioning for Sansa," Williams told Winter is Coming in 2011. "One of whom was Sophie Turner! We immediately got on well and both wanted each other and ourselves to get the parts so that we could meet again."

When the pair sat down for a chat with Rolling Stone some eight years later, Williams said that she was in awe of Turner when they met. "I thought Sophie was the coolest thing I'd ever seen," the actress said. "I get why they do chemistry reads, because when it's right, it's so right. Like, we're best friends. And they could see that all those years ago, and it must have been real magic watching these two girls have the best time together."

The girls became so close in such a short space of time that they were "distraught" at the thought of the pilot not getting picked up. "We remember the both of them bawling and hugging each other, because they loved each other so much after only a few short weeks, and were afraid they'd never see each other again," showrunners David Benioff and D.B. Weiss said during a joint interview.