It’s happened before, and it will probably happen again at some point. Doctor Who has brought back an actor who previously played another character in the franchise. Last season on Doctor Who, fans met Varada Sethu as Mundy Flynn in the Steven Moffat-penned episode “Boom.” It was later revealed that Sethu would be joining Ncuti Gatwa in the new season of Doctor Who. We’ve since learned that Sethu’s character is named Belinda Chandra, but fans have not forgotten about Mundy Flynn, and they also haven’t let showrunner Russell T. Davies forget about her either.