The Doctor, aka Doctor Who, aka Doctor John Smith.
A time-travelling alien, the Doctor has recently been called 'Superman with Aspergers'. While by human standards he is eccentric, he is also a moral being who works to right wrongs and fight injustice, even if it meant going against his own people's law of non-interference. A maverick, he hides darker emotions, especially now that he is the shell-shocked survivor of a Time War. Yet he rarely uses violence, and in fact uses his own intelligence to defeat his enemies. The Doctor, in travelling throughout time and space has had many companions, the admiration of many worlds, and the emnity of many others. He retains a soft spot for Earth and humanity, and often travels through Earth's history. Because of his unique physiology as a Time Lord, he can 'regenerate', that is, when injured fatally, he can rejuvenate and rearrange the cells of his body, giving him a new body, and often, a distinct personality with each body.
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(No longer a mod)
On sabbatical...