Originally Posted by Mr. Dent
The fact they say they cast him AS Ultron and not the voice of Ultron, and considering they cast him so far ahead of production, makes me think he's not just going to voice the character but actually play him...which obviously leads to the question of are they going to have Ultron take on a human layer of skin at some point, Terminator style? I think this Ultron is going to be even more different than we thought.
And if that is the case, it brings up the question again of why would Ultron, if he has a layer of skin over his robotic body, have the appearance of someone who is out of shape like Spader?
I prefer Spader to just be voicing the character and not showing his face. As a voice, he seems like a decent choice. As the actor as a whole playing Ultron, not so much.