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
Cecil Watson Cecil Watson Cecil James Watson (May 31, 1901 – April 11, 1983) was an American hepatologist. Watson was born in Minneapolis to Irish immigrant parents. His father was a doctor and received university education in Canada. The younger Watson enrolled at the University of Minnesota in 1919 to study French, English, and writing. In 1921, Watson began medical studies at the University of Michigan, and transferred to the University of Minnesota Medical School the next year, where he completed his degrees. He earned a doctor of medicine and master's of science degree, followed by a doctorate in pathology in 1928.