The first of the "Doctors", William Hartnell played "The Doctor" from 1963 to 1966. He may have looked frail and old, but that didn't stop him from foiling evil plots and saving the day! Known for his signature blue stoned ring, as the first "Doctor", William Hartnell made the show the success it was!
After old age finally got the first "Doctor", English actor Patrick Troughton would step in as the second "Doctor". Patrick made a comical doctor, always carrying around his recorder, but also had a very serious side to him. He would play the "Doctor" from 1966 to 1969.