Thought of leaving 'Doctor Who' while I was enjoying: Capaldi

Actor Peter Capaldi has said that he decided to leave "Doctor Who" while he was having a good time doing the role.
Speaking on "The Graham Norton Show", the 59-year-old actor, who stars in the titular role in the TV series, says he thought of leaving the show due to a fear that he may not continue to do a good job at it.
"'Doctor Who' is a great job but it is a bit of a television factory. (We shoot for) Twelve episodes a year and I worry that I won't be able to continue doing my best work. I thought while I'm enjoying it, leave," Capaldi said.

Talking about the upcoming last season of the series, the actor said he has finished with the death scene of his character, but still has a few bits left to shoot.
"I still have got the Christmas special to do. We've been filming for ten months... Well, you got to watch it and see. I have done the death of my character. I can't tell you what's going to happen but it's going to be very interesting," he said.