In the 2004 film The Punisher, Bobby is in the middle of a drug deal when he’s killed by Castle, which in turn starts the revenge taken against Castle’ family, and so on.
Bobby Saint isn’t exactly a major comic book or film character, but he’s intrinsically tied to Frank Castle, as the Saint family is responsible for the deaths of Castle’s wife and child.
Howard Saint, a corrupt businessman, was father to identical twins Bobby and John Saint.
But is this just a temporary part or something that will be expanded for Netflix’s Marvel Universe?