John Clark
John Clark is a fictional character invented by Tom Clancy and appearing in many of his novels. He performed missions for the Special Forces in Vietnam, routed drug dealers in revenge for his girlfriend's murder, was recruited by an admiral into the CIA (and staged his own death right under his Coast Guard friend's nose) in Without Remorse; helped a Soviet official's wife and daughter defect in The Cardinal of the Kremlin; rescued a Japanese politician who became prime minister, and met his old Coast Guard friend, in Debt of Honor; rescued an abandoned secret military unit in Clear and Present Danger; tracked down the source of a bioterrorism plague in Executive Orders. He later founded the multinational counterterrorist organization RAINBOW in Rainbow Six, which defeated several terrorist groups and prevented yet another bioterrorism plague before assaulting a Chinese ballistic missile base in The Bear and the Dragon.Compare: Jack Ryan