Kit Pedler was an unofficial scientific advisor on Doctor Who during the late William Hartnell and early Patrick Troughton eras. He is especially known for giving scientific credibility to the concept of the Cybermen, and for prognosticating about the Internet in The War Machines. Likewise, Pip Baker's brother, a national defence scientist, was known to have been enlisted to help solve certain scientific dilemmas in The Trial of a Time Lord. (DCOM: The Ultimate Foe)