Nathaniel Sweet was a Bo'sun's Mate on the HMS Flame. Described as a white haried, older man, he was the leader of the mutineers whoseized control of the Flame and imprisoned her captain. He sent a note to the Admiralty with their demands: that the captain be arrested for murder, and the mutineers pardoned. He included a warning that any attempt to retake the Flame would lead to their instant defection to the French.   When Hornblower led an action to retake the Flame, he spotted Sweet in th water, and determined Sweet more than any of the others could not be allowed to escape. He was shot in the water by Hornblower.