bad casting for Ra's...
I like the actor, but he's very wrong for the part.
I'm sure they were just worried about making Ra's look like some Asian or Middle Eastern stereotype...
Alexander Siddig has been cast. He's about as Asian or Middle Eastern stereotype as you can get. If you were thinking the guy from this weeks episode was Ra's, then he is not.
shareI was....
Siddig would be a good fit. The guy this week didn't even look like he should be in the wise monk teacher kind of role. He's better playing some blue collar Texan or something like that...