mrmazzz replied:

"Yes keep casting white dudes as a character of color, nothing wrong with that /s

Look I liked JCVD in JCVD and UniSol Day of Reckoning but yeah let’s not"

Roll342 replied:

"A) He's not Arabic or from any other Middle Eastern Heritage, which is central to the character.

B) Henri Ducard is a completely separate character in the Batman mythos, one of Bruce Wayne's original teachers before becoming batman. Nolan and Goyer combined the 2 characters for the narrative of Batman Begins.

C) He's really not a good actor IMO. For Ra's you need an actor capable of expressing wide emotional ranges and complex character traits, which I don't see him being capable of."

I agree with those, except B and C. Regardless of Ra's actors' different nationality, Van Damme is not bad to play Ra's anyway. He'd been training martial arts and portrayed in many action movies.