Inferno he feared his own Earth going up in similar fire and destruction. After recovering from his duel, the Doctor found the apparitions of Aggedor were being created by a machine in the mine that Eckersley had protected with a security system, assaulting the Doctor's senses when he turned it on.
Categorical Imperative while the Fifth Doctor described the third incarnation's behaviour as "arrogant" and "overbearing", although he stated that he matured over time.
The Doctor returned to Peladon with the intent of reuniting with King Peladon, but accidentally jumped fifty years ahead of his last visit. Because the species lacked the intelligence to reason with properly and were inherently violent, the Doctor did not show restraint against Ogrons , immediately resorting to murder if they were given orders to kill.
Daleks, Exxilons Setting: The Eternity Clock while Lucy Wilson described him as having "the white hair of a wizard". The alien had attempted to communicate with local citizens telepathically, killing them.
After leaving the miniscope, the Doctor returned the creatures home and destroyed the machine, allowing him to return to normal size. Country of the Blind. Unable to torment anyone any more, Marion lost the will to live and died. Realising the error of his ways, Scratch destroyed the aliens' ray-gun. Unlike his earlier incarnations, he was quite willing to engage others physically, and cut a more dashing figure.
The Daleks are back — but can Winston Churchill be in league with them? Sort of old, but young at the same time. The Doctor encountered the Master aiding Nurazh , a mind-parasite which fed off its host's life energy.
Four Doctors. Unbeknownst to him, the Doctor's plight is witnessed by a future incarnation. Dalek Facts and Asylum Guide. He helped to discover that the Ghosts were a side effect of the drugs they were experimenting with.
The Planet of the Daleks. Day of the Daleks Episodes: His constant encounters and subsequent headbutting with figures of authority often seeded much violence that could have been avoided had he been allowed to maintain a delicate touch during tense situations.