Biography: Christopher Antony Chibnall (born 21 March 1970) is an English television writer and producer, best known as the creator and writer of the award-winning ITV mystery-crime drama Broadchurch and as a showrunner of the long-running BBC sci-fi series Doctor Who. Chibnall wrote five episodes of the series under previous showrunners Russell T Davies and Steven Moffat, and was also the head writer for the first two series of the spinoff Torchwood.