Dr. No (film) that followed him. Bond, after overpowering Quarrel and his friend Puss Feller, meets Quarrel's passenger, Felix Leiter, a CIA agent on the same mission as Bond. The CIA has traced the radio jamming signal to Jamaica, but has not determined its exact origin. Quarrel, who is assisting Leiter, reveals that he had been guiding Strangways around the nearby islands to collect mineral samples. He also mentions the reclusive Dr. No, the owner of Crab Key, an island rigorously protected against trespassers by an armed security force. In Strangways' house, Bond finds a receipt from Professor R.J. Dent concerning rock samples.
Motifs in the James Bond film series films from "Dr. No" in 1962 to "Moonraker" in 1979. With Lee's illness from stomach cancer in 1980–1981, he was unable to appear in his scenes for "For Your Eyes Only"; he died on 16 January 1981 and, out of respect, no new actor was hired to assume the role for the film. Instead, the script was re-written so that the character is said to be on leave, letting Chief of Staff Bill Tanner takes over the role as acting head of MI6 and briefing Bond alongside the Minister of Defence. Lee was replaced for four films between 1983 and