I like Matt Smith.
David Morrisey who plays the governor on Walking Dead got to play a fake doctor once but says he’d like to take up the role for a few seasons.
On the other hand, John Hurt would be an interesting change.
An established actor would never take on the role these days. They ask for a minimum three year commitment.
yes, David Morrissey at 48 would be an older Dr. Who than Smith was and also than Potts at 33 would be. time for an older looking Dr. Who. And could be a playback on his ‘fake dr role’ at some point as being reason for the regenerated Dr looking like the fake one from 19Century London.