Matt Lucas told a story about actually moving Capaldi towards the angry side, telling the audience that if anyone actually touches buttons in the TARDIS, Capaldi gets a bit annoyed and pushes you out of the way.
A fuzz pedal. A wah-wah pedal. I think he’s been trying to make one for some time, because the Doctor would always rather make his own, but I think the technology of the wah-wah pedal has been eluding him. Peter on what the Doctor would want from Fath
Doctor Who Season 9 -‘The Magician’s Apprentice’. Peter Capaldi on set with the guitar that was shown in the opening scene. He also rode a tank in that scene, gradually breaking the rules of time travel by showing medieval people the "Future".