Although he began writing espionage fiction in the late 1960s, he first won fame in 1977, with Charlie M. That book introduced the world to Charlie Muffin — a disheveled spy with a skill set more bureaucratic than Bond-like. The novel, which drew favorable comparisons to the work of John Le Carré, was a hit, and Freemantle began writing sequels. The sixth in the series, The Blind Run, was nominated for an Edgar Award for Best Novel. To date, Freemantle has penned fourteen titles in the Charlie Muffin series, the most recent of which is Red Star Rising (2010), which brought back the popular spy after a nine-year absence.
In addition to the stories of Charlie Muffin, Freemantle has written more than two dozen standalone novels, many of them under pseudonyms including Jonathan Evans and Andrea Hart. Freemantle’s other series include two books about Sebastian Holmes, an illegitimate son of Sherlock Holmes, and the four Cowley and Danilov books, which were written in the years after the end of the Cold War and follow an odd pair of detectives — an FBI operative and the head of Russia’s organized crime bureau.
Freemantle lives and works in London, England.