I expect the accent is part of it, actually. Call it the Henry Higgins effect. Rose: If you ARE an alien, how come you sound like you're from the North? T

I expect the accent is part of it, actually. Call it the Henry Higgins effect. Rose: If you ARE an alien, how come you sound like you're from the North? The Doctor: Lots of planets have a North! (the joke lands better for American audiences if you mentally replace "North" with "South"; in many ways the economics/stereotypes are similar) https://www.youtube.com/watch?v=svi-fBXZzqI https://www.youtube.com/watch?v=svi-fBXZzqI