But the actor admitted that he would like to to play the character much more darker if he got the chance to come back.
Speaking at the Cheltenham Literature Festival, he said: “I’d love the opportunity to play him differently. I’d love to have another take on him, to be a bit quieter.
“I started annoying myself after a while. Russell T Davies had a specific idea of what he wanted him to be like. So I just had to do exactly what he wanted me to, and he wanted a giggling lunatic.
“There’s a new writer now and I’m sure his take on him would be different so I’d be interested to have a look at it. I’d like to take the Master to a very, very dark place.”
Finally, John confessed that the Master’s blond hair was his idea: “That was a mistake. I shouldn’t have listened to my instinct there.”