Stonebanks is a fictional character from the action film series The Expendables. He is portrayed as a former member of the team who becomes an antagonist, leading a group of mercenaries. His character is known for his ruthless tactics and strategic mind. In the film, Stonebanks is depicted as a wealthy arms dealer who has a personal vendetta against his former ally, Barney Ross. The conflict between them drives the plot, showcasing themes of loyalty, betrayal, and the consequences of a violent lifestyle.