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
Dr. Watson Four" in which he was played by Ian Hunter. Athole Stewart played Watson in the 1931 film "The Speckled Band" Reginald Owen played Watson in the 1932 film "Sherlock Holmes" Warburton Gamble played Watson in the 1933 film "A Study in Scarlet" The series of Sherlock Holmes films with Basil Rathbone as Holmes and Nigel Bruce as Watson portrayed the doctor as a lovable but incompetent assistant. Some later treatments have presented a more competent Watson. Watson was played by actor André Morell in the 1959 film version of "The Hound of the Baskervilles", wherein Morell preferred that his version