It's all good. Eric Roberts is worth bitching about. He managed to screw up nearly everything he's in. I liked him as Michael in The Prophecy, but that's probably because it was a minor role, and he didn't say much. :P

Knowing what I know about the Master, there's very little reason for him to be terrified of either Dalek or Doctor. He was supposedly in his last regen when we met him in Pertwee's run. He'd seen everything, done everything, and has no qualms about doing it again. He uses everyone as pawns, and he knows when he's in over his head. He might be a little frightened for his life in the moment, but when the moment passes, he's instantly back to his old self.