Biography
Characteristics
Quirks and Habits
The Second Doctor dressed similarly to the First Doctor, though in far less natty fashion, the pants now clownishly large and the cravat replaced with a bow tie. He abandoned the blue signet ring as it no longer fit him. In his first adventure on Vulcan he possessed a tall stovepipe hat, never seen subsequently. He also possessed a recorder which he played to concentrate or while under stress. He often used the phrase, "When I say 'run', run."
On Vulcan, Scotland ("The Higherlander") and Atlantis ("The Underwater Menace"), he posed as or disguised himself as other people, sometimes positively relishing the chance. Less willingly, he also impersonated Salamander, the Second Doctor's physical double.
The Second Doctor first revealed to us and his companions the Five Hundred Year Diary ("The Power of the Daleks"), his sonic screwdriver ("Fury From the Deep") and the alias Doctor John Smith ("The Wheel in Space", all of which he would return to in later incarnations.