Fifth Doctor

* Season 18
* Season 19
* Season 20
* Season 21
* The Caves of Androzani

Youthful in mind, manner and appearance, **the Fifth Doctor** expressed an interest in all things Victorian and Edwardian: cricket, tea, fair play, good manners, and a keen interest in science and exploration.

He was also a sensitive and profusely humane incarnation of the Doctor, who did not make himself an imposition, preferring to be honest reserved, and honourable. However, the Doctor was also less willing to do what he thought was immoral, and became highly conflicted about what choices he could make in a crisis that were truly right. His hesitancy made him seemingly more fallible than many other incarnations, making those around him wonder if he was capable of resolving difficult situations. Nevertheless, he was one of the most overtly fearless incarnations, and frequently found himself right in the thick of battle. A pet peeve of his was when there was always one last thing that he couldn't solve, complaining about the principle "Checkov's Gun" (where as all elements in a story should be used). Likewise, if he was attempting to defeat an enemy, and there was one last part of the day that remained unexplained, he would be frustrated, sticking to ponder it all day.

Like his first two incarnations, the Doctor often travelled with multiple companions. However, his TARDIS was rarely as harmonious as those of his predecessors. Instead, he frequently found himself stuck between Tegan Jovanka's pessimism and Adric's arrogance or Turlough's mix of realism, antagonism, optimism, and stupidity. Stuck in the middle with him was usually Nyssa or Kamelion, who semi-regularly had to stand as a voice of reason.

After Adric's death in Earthshock, Nyssa's retirement to work on medicine, and an encounter with his previous incarnations, the Doctor had to defeat the Mara once and for all, nearly killing Turlough in the process. During the Mara's last breath, she damned the Fifth Doctor to regeneration "in the next 730 days" (or two years).

Shortly after this, he witnessed the Watcher stalking him while on a planet. Kamelion then changed into his former incarnations and two companions, causing him to collapse.

During his final adventure, but only after Tegan and Turlough left, the Doctor accidentally exposed himself and Peri Brown to unrefined spectrox, contracting fatal spectrox toxaemia. Though he acquired an antidote, the Doctor had only enough for one person; he gave it to Peri. Not knowing if the disease could kill Time Lords for good, the Doctor gambled on regeneration saving his life, successfully regenerating into a new body after experiencing a vision of the Master and his former companions.

## Appearances

### Season 19

1. Castrovalva
2. Sail of the Tirrig
3. Four to Doomsday
4. Kinda
5. The Visitation
6. Doomsday
7. Black Orchid
8. Time-Flight
9. Retribution of the Daleks
10. Earthshock

### Season 20

1. Arc of Infinity
2. Snakedance
3. Mawdryn Undead
4. Terminus
5. Enlightenment
6. The King's Demons
7. The Charter of Segald
8. Slums of Lymos
9. The Unfortunate
10. Tundras of the Futures Past
11. The Five Doctors

### Season 21

1. Warriors of the Deep
2. Fiarro
3. Twiceport
4. The Awakening
5. Frontios
6. Night of the Mara
7. Market
8. Resurrection of the Daleks
9. Planet of Fire
10. The Caves of Androzani