I never forget a face.
I know you don't.
And in years to come you might find yourself revisiting a few,
but just the old favorites.
"The Day Of The Doctor"
That's what I would hope for at some point in the Future - to see Sean Pertwee play a future incarnation of the Doctor, from far in the Future if they so choose. (But not locked into being a particular incarnation like the Valeyard was.) And he should play it as an homage to his father, Jon Pertwee the Third Incarnation.