Sir Robert King is a softly spoken, well-respected distinguished gentleman who is a personal friend of M’s after they read law together at Oxford. King becomes a wealthy oil magnate after marrying an Azerbaijani woman whose father was an oil marquis. King's father-in-law, having no sons to pass his business onto, was pleased to have a man like Robert King marry into his family, and bequeathed the business to him. Mrs. King would die of natural causes sometime before the events of the film, but not before their marriage produced a daughter, whom they named Elektra.
When Sir Robert's daughter Elektra is kidnapped by the terrorist Renard, he turns to M for advice. The MI6 head suggests that he shouldn't pay the ransom; an action that causes an embittered Elektra to secretly side with and manipulate Renard into helping her take revenge on her father and on M for making that recommendation, as well as on posthumously on her grandfather for leaving his oil business to a non-Azeri.
Some time after the kidnapping, Renard murders an MI6 agent and steals the classified document which the he had been carrying. King purchases the stolen document via the Swiss banker Lachaise, believing it would identify the terrorists who had attacked his new oil pipeline. When he discovers that it is actually a classified report from the Russian Atomic Energy Department, the oil magnate turns it over to M.
Shortly after the transaction, Renard (and Elektra) attempt to return King's money via Lachaise; which they have converted into a sophisticated fertilizer bomb. On a mission to determine the identity of the murdered agent's assassin, James Bond recovers the money from Lachaise and unknowingly delivers the bomb to its intended victim. Upon contact with the money the bomb is triggered by a transmitter concealed in his lapel pin; a copy of the real heirloom, switched by his daughter.
- An author named Robert King co-wrote an enclopaedic book "Your Deal, Mr. Bond".