Kyndryd I think Flint is that kid who can move rocks.
"just one question; who the HELL is Flint?" indeed.
Doctor Who (2005) Season 10 Episode 13 (s10e13)
The Doctor is an alien Time Lord from the planet Gallifrey who travels through all of time and space in his TARDIS. He has a long list of friends and companions who have shared journeys with him. Instead of dying, the Doctor is able to “regenerate” into a new body, taking on a new personality with each regeneration. Twelve actors, plus John Hurt, have played The Doctor thus far.