Furman cut his comic book teeth editorially on Scream! (a junior horror title published in 1985 by IPC Magazines) and Captain Britain Monthly (for Marvel UK), and his first script work - bar a few short stories in UK horror comic Scream! - appeared in Transformers (UK, issue #13). While continuing to edit titles such as Thundercats, Furman wrote numerous (too numerous to list here) Transformers stories and scripts for Zoids, Doctor Who Monthly and the US-format comic books Death's Head and Dragon's Claws. Furman then took over the script duties on the US Transformers book with issue #56, and has since written Alpha Flight, She-Hulk, What If?, Transformers: Generation 2 and Turok: Dinosaur Hunter. Now working primarily in TV animation, Furman has scripted episodes of Beast Wars, Roswell Conspiracies, X-Men: Evolution and the upcoming Dan Dare: Pilot of the Future.