Christopher Antony Chibnall born 21 March 1970 is an English television writer and producer best known as the creator and writer of the awardwinning ITV mysterycrime drama Broadchurch and as a showrunner of the longrunning BBC scifi 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