Aramide Tinubu As the new Doctor at the helm of the Tardis, the police box-shaped time-traveling ship, Ncuti Gatwa takes “Doctor Who” on a thrilling ride that doesn’t disappoint. The ancient alien and his latest companion, Ruby Sunday (Millie Gibson), embark on a vibrant season jammed with all the magical elements that have made the show a British television staple for 60 years. Russell T Davies first spearheaded “Doctor Who” from 2005 to 2010.