"You see the actions before you understand the context," Coster-Waldau explains of Jaime. "So the actions are horrific and then when you learn the context and you learn why and how and you get more of an awareness of the guy, it makes it harder to see it as black or white. Usually when we watch a movie or something we'll put the characters into boxes, like 'That's the good guy, that's the bad guy.' I get those questions all the time: 'So you like playing bad guys?' But I never play characters as bad or good. I just look at it as human beings. Jaime is a good example. In the beginning it's easy to look at him as an arrogant, horrible person, and then you learn that you shouldn't just judge a book by its cover."
He adds, "Life can be very complicated sometimes and his is very complicated. There are these surprises being thrown at him all over the place, which is fun to play and fun to react to. For a second he thought he was in control when it came to the military part of the equation and then this fire-breathing monster dragon appears and destroys that idea. It's complicated, but it's fun to play."
Jaime also, apparently, is about to become a father for the fourth time. Cersei revealed she's pregnant, although some fans are skeptical. Coster-Waldau, however, feels that Jaime believes her – for now.
"I think he believes her," he says. "She looks happy for the first time in three years. She broke the spell when they embrace and she says, 'Never betray me again.' It's the briefest moment of bliss and then she destroys that and becomes the evil one again. Maybe we'll find out differently in one of the episodes to come, but in that scene, I think he believes her."
Coster-Waldau is currently finishing production on Brian De Palma's upcoming film Domino and doesn't feel that he needs some kind of Game of Thrones exit strategy in place now that the series is coming to an end with the upcoming Season 8.
"The truth is I've been doing other stuff," he says. "I've done at least a few projects every year for all those years, so it's not like I've just done Game of Thrones and just waited for it to end. It's one of the jobs I've been doing. But it's been a job that's lasted a long time, that's for sure."
And next? "If I'm still alive we'll shoot the final season of Game of Thrones," Coster-Waldau says. "We'll see in a few weeks."