Jaqen H'Ghar. His actions, the way he speaks and the code he lives by. I will admit that I liked the actor who portrayed him in the show and the changed they made which lead to me liking him a lot more.
Can't we just sit back and go "Holy crap!!! Aquaman is going to be on the big screen!!!!"? It's great news. People need to not worry so much about the look. If you're just picturing the guy from Game of Thrones, of course he doesn't look right. I'm not saying he's going to be good or bad, but I'm at least willing to give it a shot. I've been wrong so many times about casting I don't even think about it any more. Hell, I was against Stephen Amell being Ollie, boy was I wrong.