The name of the mutant-detection computer from X-Men is in fact Cerebro.
Steve Lyons wrote an X-Men novel trilogy, The Legacy Quest.
Patrick Stewart, who played Professor Charles Xavier in several X-Men movies, was considered for the roles of both the Doctor and the Master in the 1996 TV movie.
Ian McKellen played Magneto in the original film trilogy, and Days of Future Past.
In 2017, Alan Cumming, who played Nightcrawler in the 2003 film X2, said that he had been approached about playing the Doctor on two occasions, once by Russell T Davies and once by Mark Gatiss, but that the deal-breaker both times had been his reluctance to relocate to Cardiff.