19. The Tenth Doctor's Daughter Is Actually His Wife
The Doctor has done his fair share of keeping it in the family over the years but things are just as confusing for our beloved Time Lord off screen, too. Don't believe us? Tenth Doctor David Tennant is married to actress Georgia Moffett who played his daughter, Jenny, in Series 4 and she also just so happens to be the real life daughter of Peter Davison who portrayed the Fifth Doctor back in the 80s. So the Doctor's daughter actually
is the Doctor's daughter, as well as the Doctor's wife, while the Doctor is the Doctor's father in law. And you thought River Song's family tree was confusing. Tip of the timey-wimey iceberg, my friends.