Tom Hagen

Thomas "Tom" Feargal Hagen is a fictional character in the Godfather books and films. He was portrayed by Robert Duvall in the films. He is the informally adopted son of Don Vito Corleone and serves as the family lawyer and consigliere (advisor). He was a very close childhood friend to Santino "Sonny" Corleone and was considered a brother by the Corleone children. Some have speculated that Hagen is based on real-life mobster Frank DeSimone. While both men were lawyers that came from Mafia families, DeSimone was heavily involved in illicit and violent activities of the gang while Hagen mostly kept his hands clean. After Connie Corleone's wedding, Hagen is dispatched by Vito Corleone to Hollywood in order to convince Jack Woltz, a big-time movie studio head, to give singer/actor Johnny Fontane (Vito's godson) the lead role in his new war film. When he first approches Woltz, he offers help with some union trouble, as well as getting one of Woltz's actors off of heroin, in return for... full article at wikipedia