James William Mitchell (12 March 1926, in South Shields – 15 September 2002, in Newcastle-upon-Tyne) was a British writer of crime fiction and spy thrillers.
The son of a shipyard worker, Mitchell also wrote under the pseudonyms James Munro and Patrick O. McGuire. He received bachelor's and master's degrees from Oxford.
James Mitchell created the British television series When the Boat Comes In (BBC) and Callan (Thames Television), and wrote many other television scripts, including episodes of The Troubleshooters, the legal drama Justice and The Avengers.
The hero in his Munro books is a British agent named John Craig, who works, mostly reluctantly, for Department K. Mitchell wrote the screenplay for the 1971 film version of The Innocent Bystanders under his real name.
Mitchell died in Newcastle upon Tyne on 15 September 2002. He was 76.