McGann hasn’t aged because somewhere in his attic is the original reel of the TV Movie, aging.
There is no simulated motion blur in the movie, in order to make the movie feel like a stop-motion LEGO film. Instead, when scenes called for characters to move quickly, the animators constructed LEGO brick “streaks” in the same colors as the character.
The LEGO Movie (2014)
William Hartnell hasn’t died. He regenerated into Richard Hurndall. Richard Hurndall hasn’t died. He regenerated into David Bradley.
Katy Manning was actually the third Doctor, but was overshadowed by Jon Pertwee. Big Finish created the Iris Wildtyme series to attempt to make up for that injustice.
Nicola Bryant can actually do a perfect American accent. She’s the first companion that The Doctor ever revealed his true name to. It just so happens that his name is Dak Terr.