Haha, no, I had that icon before I even knew who Stannis was. I love Mark Strong, I've seen so much of his work and he's really one of the best actors I've ever seen in anything. Watch The Long Firm, if you haven't yet. It's one of the few things in which Mark actually plays the lead and not just a small role. And while he can nail a role with just three minutes screen time, he does even better when he gets a more important part.

If they somehow manage to get him for the role, my joy will know no bounds. I'm almost wishing here that Mark's career hadn't taken off so much in the last years, what with him getting one movie part after the other.
I hate the word "stan", but it's oddly fitting for Stannis. ;D