George Bellairs is the pseudonym under which Harold Blundell (1902–1982) wrote police procedural thrillers in rural British settings. He was born in Lancashire, England, and worked as a bank manager in Manchester. After retiring, Bellairs moved to the Isle of Man, where several of his novels are set, to be with friends and family.

In 1941 Bellairs wrote his first mystery, Littlejohn on Leave, during spare moments at his air raid warden’s post. The title introduced Thomas Littlejohn, the detective who appears in fifty-seven of his novels. Bellairs was also a regular contributor to the Manchester Guardian and worked as a freelance writer for newspapers both local and national.
George Bellairs was the pseudonym of Harold Blundell (1902–1985), an English crime author best known for the creation of Detective-Inspector Thomas Littlejohn. Born in Heywood, near Lancashire, Blundell introduced his famous detective in his first novel, Littlejohn on Leave (1941). A low-key Scotland Yard investigator whose adventures were told in the Golden Age style of Agatha Christie and Dorothy L. Sayers, Littlejohn went on to appear in more than fifty novels, including The Crime at Halfpenny Bridge (1946), Outrage on Gallows Hill (1949), and The Case of the Headless Jesuit (1950).

In the 1950s Bellairs relocated to the Isle of Man, a remote island in the Irish Sea, and began writing full time. He continued writing Thomas Littlejohn novels for the rest of his life, taking occasional breaks to write standalone novels, concluding the series with An Old Man Dies (1980).