The Doctor (Doctor Who) credits Tennant as "Doctor Who". The credit reverted to "The Doctor" for 2005's Christmas special "The Christmas Invasion" and all subsequent stories at Tennant's request. Matt Smith, Peter Capaldi and Jodie Whittaker have continued to be credited as "The Doctor". John Hurt plays a mysterious past incarnation of the Doctor in the 50th anniversary special "The Day of the Doctor", with minor roles in "The Name of the Doctor" and mini-episode "The Night of the Doctor", created as a "mayfly Doctor" by Steven Moffat. In the television episodes, he is credited as "The Doctor", but he is introduced as "The
Riley Watson Riley Watson Joseph Riley Watson (28 March 1859 – 18 October 1915) was an English medical doctor and public health official who was also in his youth a cricketer who played first-class cricket in two matches in the 1880s. He was born at Steeton-in-Craven, Yorkshire and died at Harrogate, also in Yorkshire. Watson was educated at Pannal College, Harrogate and then at a succession of medical training establishments and universities: The Yorkshire College of Science (later Leeds University); University College, London; Christ's College, Cambridge; and then the University of Edinburgh. He graduated from Cambridge University with a Bachelor of Arts