Sonny Corleone is a fictional character from Mario Puzo's novel, "The Godfather," and its film adaptation directed by Francis Ford Coppola. He is the eldest son of Vito Corleone, the head of the Corleone crime family. Known for his fiery temper and impulsive nature, Sonny often acts as the enforcer for the family, taking charge of violent situations. In the story, Sonny's character embodies the struggles of loyalty and power within the Mafia world. His relationships with his family, particularly with his brother Michael Corleone, highlight the complexities of family dynamics in a criminal environment. Sonny's tragic fate serves as a cautionary tale about the consequences of unchecked aggression.