Robert Kilgore Muchamore is an English author specializing in young adult fiction. He is best known for his popular CHERUB, Henderson's Boys, and Rock War series. Born in Islington, London, Muchamore began his career working as a private investigator until 2005, when he fully committed to writing following the success of his book Maximum Security.

The idea for the CHERUB series was inspired by Muchamore's nephew, who complained about the lack of engaging reading material for young adults. His first book, CHERUB: The Recruit, won the Red House Children's Book Award in 2005 in the Older Readers Category.