Felix Leiter is a fictional character invented by Ian Fleming in the James Bond books, who also appears in the Bond movies. In the films, Leiter works for the CIA, and assists Bond in his various adventures, although in Licence to Kill, Leiter had transferred to the DEA. In the novels, Leiter initially works for the CIA, then later becomes a private detective after suffering a catastrophic injury. The name "Felix" comes from the middle name of Fleming's friend Ivor Bryce, while the name "Leiter" was the surname of Fleming's friend Marion Oates Leiter Charles, then wife of Thomas Leiter.