This month, news broke that Sex Education star Ncuti Gatwa would be joining the iconic BBC series Doctor Who as the 14th Doctor. Gatwa will be joined by returning showrunner Russell T Davies, who rejoins the show after a 12-year absence. And while new cast members have yet to be announced, Davies shared that two familiar faces would be returning to the series for Doctor Who‘s 60th anniversary next year: David Tennant as the 10th Doctor and Catherine Tate as his companion Donna Noble.