[Geass]

You know, it might not be bad, but it might be bad. Its going to end up being on finding the either to compromise on voice talent via the actors physical semblance to the character.

Easily enough villains aren't that hard to make up, its just keeping the semblance of the characters of the show to appear IRL in semblance. I think voices would have to be left open to how it sounds to having the true nature of the character come out when the actor speaks.

Its going to be a difficult balance of compromise in casting, especially physically.

But hey, in the least, the Tachikoma will keep their voice actors, and you can't go wrong there!