The first trailer for Doctor Whos new season introduces a new companion for Ncuti Gatwas Doctor, with Varada Sethu (Andor, Jurassic World Dominion) in the role of Belinda Chandra, quipping that if hes the Doctor, then that makes her the Nurse. Now, the rest of the trailer is light on Chandras backstory, so its possible shes having a bit of a joke about yet-to-be-revealed circumstances, but it wouldnt be the first time that Doctor Who, or even Russell T Davies, played with the irony of the Doctor having an actual medical professional for a companion. The one other thing about Chandra that the footage does reveal is also pretty tantalizing.There is something already connecting us, Gatwas doctor says in the trailer, as footage reminds us of Sethus role as the futuristic Anglican Marine Mundy Flynn, in last seasons episode Boom. It seems theres some kind of time-crossing link between Mundy Flynn and Belinda Chandra it wasnt just a random guest appearance, but something fishy at work in the universe.The rest of the new trailer is a tour of exciting sights in the Whovian tradition: giant spiders and skeletons; sci-fi vistas of all sorts; Millie Gibson reprising her role as last seasons companion, Ruby Sunday; and even some kind of interstellar Eurovision competition.Doctor Whos new season is either the second (since the international broadcasting rights were acquired by Disney Plus), the 15th (since the show was revived in 2005) or 41st (since the show began in 1963) season of the series, depending on how youre counting. It premieres on April 12, with eight episodes debuting weekly.