"Oh God, I get sleepless nights over it [the last season of GoT] 'Oh, you're gonna mess it up. It's the last season, and it's going to go wrong.' My mates are like, 'It's you — you [and Daenerys] are one and the same now. You need to trust your instincts!' And I'm like, 'No, I've got to do more research!' The higher everyone places the mantle, the bigger the fall. That sounds really awful, but it's true! I don't want to disappoint anyone, basically."