Colin Sullivan

Colin Sullivan is an undercover gangster within the Boston Police department, acting as the personal mole for ruthless mob boss Frank Costello. Colin serves as the secondary antagonist of Martin Scorsese's crime drama The Departed. He is the counterpart to the film's protagonist, undercover Cop Billy Costigan.

Sullivan is portrayed by award winning American actor Matt Damon.

he was based of Inspector Lau Kin Ming

Biography
like his original counterpart Lau Kin Ming, Colin frist met Frank Costello as child at the bar and become father figure to him. Frank introduced him to crime which Colin become officer under mole

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