Timeless Child
The Timeless Child... is The Doctor. Well, duh, but not like that. Also this makes the half human bit plausible. The Peter Cushing movies. The Doctor was an allegedly human scientist with a TARDIS that he developed, maybe he acquired one that had gotten to his universe or developed it after analyzing a damaged TARDIS. Has some shenanigans with the Daleks of his universe, and at some point gets shoved through a portal to be found by Tecteun. And perhaps he had the intellect and base knowledge to do all that he did due to the science of his fathers homeworld, perhaps, even, his father was from Gallifrey? And his mother was just some random human. Hell, maybe it wasn't a main universe TARDIS he worked from, maybe it was his fathers. And in the ancient myths of his fathers homeworld, a scientist found a child near a portal on a distant world...










