Professor X (fictional character)

Professor X was the eponymous protagonist of the BBC science fiction television series of the same name.

He was a mysterious scientist who travelled through time and space inside a TASID, a ship which resembled a pillar box on the outside. (PROSE: No Future) Alice Lloyd told the Sixth Doctor that Professor X was always exploring dimensions similar to their own, including one where the Nazis won the Second World War and one where Kennedy wasn't assassinated. (AUDIO: The End of the Line)

In 1976, the character was being played by Frankie Howerd. During that same year, Bernice Summerfield, apparently unfamiliar with this aspect of 20th century popular culture, encountered the Professor in his own fictional world inside the Mediasphere. Using his TASID, the Professor dropped her off in the real universe. Benny noticed his resemblance to the Seventh Doctor and appreciated the character all the more because of it. (PROSE: No Future)

Fans argued whether the latest incarnation of Professor X, who wore a high-collared black silk jacket with curly blond hair and an "imperious gaze", was the ninth or tenth. Monsters battled by the Professor included the XTerminators, Snow Vikings, whom debuted in The Snow Vikings, and Cybs. (PROSE: Synthespians™)

Behind the scenes
Professor X functions as a fictional analog to the Doctor within the DWU. The physical description of Professor X's latest known incarnation matches that of the Sixth Doctor, his black costume evokes Colin Baker's wish to have sported the colour before a multicoloured coat was introduced by John Nathan-Turner. (DOC: Doctor Who: The Ultimate Guide)