Yea he was totally evil in Buffy.
What about James Nesbitt? People tout him as the next Doctor, but he would make a nice, suave Master I think
James Nesbitt as the Master is a brilliant choice for two reasons. First, as soon as I read it, i can see him as an urbane, civilised and slightly witty villain. Secondly, it means that he would not be able to play the Doctor and (this is based on nothing more than my personal opinion) I couldn't see him pulling
that role off with any conviction. Yet as the Master, he really works for me.