Look alikes of the Doctor either naturally looked like The Doctor, as with Ramón Salamander or Jeremiah O’Kane, or they actively pretended to be The Doctor by assuming his physical characteristics. In two cases, The Doctor has taken on the form of others he has encountered.
Individuals who at one point did not look like The Doctor, but later changed their appearance to impersonate him should be placed in the subcategory Individuals who altered their appearance to look like The Doctor.
Not everyone in this category is an enemy. Nevertheless, many in this category can be compared to individuals who pretended to be The Doctor but didn’t look like him.
Abbot of Amboise
Tom Baker (The Girl Who Loved Doctor Who)
Tom Baker (Action!)
Peter Capaldi (The Girl Who Loved Doctor Who)
Cuthbert (The Sands of Life)
Daniel (The Sphere)
Peter Davison (The Girl Who Loved Doctor Who)
Destructor Unit J7
Eighth Doctor (puppet)
Eleventh Doctor (Ganger)
Fifth Doctor (android)
Fourth Doctor (android)
Third Doctor (android)
Gregory (Tsar Wars)
Meta-Crisis Tenth Doctor
Second Time Lord (The War Games)
John Smith (Tenth Doctor)
Matt Smith (The Girl Who Loved Doctor Who)
Solomon (Dinosaurs on a Spaceship)
Soul (Sometime Never…)