Ancient Pistol is an officer in the army, an ensign-bearer.
He is a swaggering braggart, trying to intimidate everyone he meets, speaking in overblown terms and stuffing his speech with foreign phrases and curses. It is said that he and Doll Tearsheet beat a man who later dies of his injuries. Pistol rushes to find Falstaff when Henry IV dies, hoping to rise in favor with the new King as Falstaff does. Unfortunately for him, this merely leads to his arrest. His further adventures are chronicled in Henry V.