. "Doctor" . "Second" . . . . . . . . . . "the Doctor" . "second incarnation of the Doctor" . "second Doctor" . "Doctor's" . "the replacement" . "Second Doctor" . . . . "Second Doctor" . "a new form" . "flautist" . . "Second Doctor (Patrick Troughton)" . . . . . . . . . . "The Doctor" . "Doctor 2" . "second incarnation" . . . "2nd" . . . . . . "role" . . . . . "second" . . "Patrick Troughton" . . "2nd Doctor" . . "younger man" . "Season 6B" . .