Sixth Doctor

Whilst on Androzani Minor, both The Doctor and Peri Brown contracted a fatal condition called spectrox toxaemia. The Doctor gave Peri the only antidote available, saving her at the cost of his own life. He expressed uncertainty as to whether he would regenerate or not, as it felt "different this time". However, he managed to regenerate. 
Apon regeneration The Doctor admired his new face, yet his companion Peri didn’t admire The Doctor’s sudden transformation, though The Doctor didn’t seem to care. In the first few hours signs of regeneration paranoia and violent outbursts plagued The Doctor. After an adventure on Titan 3 he gained composure of himself and proceeded to have more Adventures with Peri, taking them through many worlds including fighting Davros, and a run-in with the Celestial Toymaker in Blackpool.
Though after a few adventures with Peri, he would begin to travel alone for a short period of time, encountering many in his travels even coming in contact with a future incarnation of The Master he does not remember clearly which Incarnation of The Master he encountered.
He would also shortly travel with a Shape Shifter named Frobisher, and they would have Many Adventures, one of them being Frobisher being mistaken for a god.
He would once again meet with Peri and take her on more Adventures, which would ultimately be her last as without him knowing she was killed by the Time Lords as her mind was overwritten. The Doctor wouldn't find out about this until he was put on trial for interfering in otherworldly affairs, and genocide where he encountered a supposed future incarnation of himself known as The Valeyard, in this trial he would be presented with parts of his life via the Matrix as evidence but later in the trial it would be revealed The Valeyard was tampering with the evidence in order to obtain the remaining regenerations of The Doctor, the Valeyard would escape into the Matrix and with the help of a future companion they would stop him.
After the trial, The Doctor would once again travel alone throughout time and space on his own for a while, as of right now he is currently traveling alone defending the universe from evil…
Category:Incarnations of the Doctor
Category:Canon
Category:Time Lords