re: Most underrated GoT character?

heatom2--that "slightly spoilerish" scene you were talking about was exactly what I was referring to. Seeing him send the boys on their way was powerful. That character was cast perfectly. Because it's a relatively small part he doesn't get a lot of accolades, just seems to go unnoticed (20 times more people bitch about how useless Dany is than mention Luwin) but Rewatching that scene, it really struck me what a great supporting character he is and what a great job the actor does.

I agree with others that Stannis is probably pretty underrated too. I love Tywin's casting and he's a great character but I wouldn't call him underrated, at least not by this board.