After starting inCrisis, he was signed up for the short-lived titleRevolver, where two long series, 'Stickleback' and 'YoYo', were intended to run. The magazine folded before it saw print, however, and from 1993 to 1995 Spencer was a regular writer for theJudge Dredd Megazine and created characters such asHarke & Burr andThe Creep as well as working on established characters (e.g.Judge Dredd). Spencer also edited comics and music magazineDeadline between 1991 and 1992.
Spencer has also written for television. After winning a 'New Voices' competition with the playTracey and Lewis, he secured a position at the BBC as script editor on prime-time cop showCity Central. He later worked as a staff writer for theBBC'sEastEnders andITV'sThe Bill in addition to being storyliner and series editor and contributing scripts toGrange Hill. He was credited as script editor on the 2009Aardman pilot forCBBC showMen in Coats.
An issue #368 ofDoctor Who Magazine from March 2006 revealed that he was to write an episode for theDoctor Who spin-off seriesTorchwood and that he would make an appearance at the 2006 BristolComic Expo to publicise it,[ambiguous] though he was not among the writers of episodes for the first series. However, a 2010 bookTorch, Wood & Peasants, which was credited to "Webley Wildfoot", details the story of a writer on a fictitious British SF series and contains a script that has several strong similarities toTorchwood.
In October 2010, Vertigo published the first issue of aHellblazer mini-series,Hellblazer: City of Demons.
Spencer also ran a Facebook page 'Script Doctor', providing advice and support for new writers.
In June 2014, Vertigo published the first issue of his creator-owned monthly eight issue limited seriesBodies.A television adaptation of the comic by Netflix and Bondage Pictures premiered in October 2023.[4][5]
In 2015, Self Made Hero published the one-shot graphic novelKlaxon in September. Two months later, Vertigo published the first issue of the six-part seriesSlash & Burn.
Spencer died from heart failure in February 2021.[6]