Is Captain Jack The Face Of Boe. In the episode “last of the time lords”, the immortal time traveller captain jack harkness expresses concern about how he might look if he lives “for a million years”, because although he cannot die, he is still aging, albeit slowly. In series 3, episode 13, captain jack faces his immortal existence.
However, could jack really be the face of boe? Several fan theories exist to explain how jack might've become the face of boe. Seeing the face of boe die, if that is jack, it's possible that the force behind his immortality tapered off near the end and he then.
