Fifth Doctor

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.

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 antagonism. Stuck in the middle with him was usually Nyssa, who regularly had to stand as a voice of reason. Even after he seemingly was settled on just having one companion, he and Peri Brown found another companion, a pharaoh from Egypt called Erimem, and the Doctor once again slid into the role of the oft-maligned chaperone.

During his final adventure, the Doctor accidentally exposed himself and Peri 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.