Something about: The 4th Doctor

• The 4th Doctor is played by Tom Baker
• He is considered 'The Doctor'
• He is the longest running Doctor 
• He is the Doctor in the most stories
• He is the Doctor in the most episodes
• Since 2009 he has been the audio series "The New 4th Doctor Adventures"
• His companions include Sarah Jane Smith, Harry Sullivan, Leela, K9, Rommana and Adric
• He was the Doctor for 7 seasons
• He returned for the 50th Anniversary episode "Day of the Doctor"
• His episode "City of Death" was the most watched episode of Doctor Who ever.
• He first appeared in "Planet of the Spiders" (1974) and last appeared in "Logopolis) (1981)