In the last of the Doctor Who 60th Anniversary specials, "The Giggle," audiences were in for one mind-bending revelation after another. They saw the much-anticipated return of the Toymaker, a villain who hasn't appeared since the First Doctor's era. They witnessed the return of a long-gone companion from the classic show, Melanie Brooks. And finally, they saw Ncuti Gatwa finally appear as the Fifteenth Doctor — which he did under unprecedented circumstances.