Read more about Rassilon at: Wikipedia

Official Site: BBC

Rassilon is a fictional character in the British science fiction television series Doctor Who. In the backstory of the programme, he was the founder of Time Lord society on the planet Gallifrey. After the original television series ended in 1989, Rassilon's character and history were developed in books and other media.

Within the universe of the television series, there are many contradictory legends about Rassilon. It is known that he developed the technology for time travel that made his people lords of time in the distant past together with his colleague Omega. Omega, a stellar engineer, was presumed killed by the supernova that created the black hole later known as the Eye of Harmony, and Rassilon harnessed the nucleus of the black hole to provide the energy that powers time travel. Rassilon then took control of Gallifrey and became the first Lord President. The official history is that he was a benevolent ruler who ruled his people wisely. However, there are other accounts which paint Rassilon as an opportunistic, ambitious and cruel dictator who seized power in the wake of his friend's death (for which some suggest he may have been deliberately responsible).

Rassilon's contributions to Time Lord culture and society were immense, and his name both reverberates and is honoured throughout Time Lord history. The Rassilon Imprimatur is the name given to the symbiotic nucleus of a Time Lord's cell structure which allows them to withstand the molecular stresses of time travel and grant them a link to their TARDIS time machines.

Several other Time Lord artifacts named after him have a technological function, in addition to their ceremonial roles:

Rassilon has not been a contender in any CBUB matches.