The Departed

To take down South Boston's Irish Mafia, the police send in one of their own to infiltrate the underworld, not realizing the syndicate has done likewise. While an undercover cop curries favor with the mob kingpin, a career criminal rises through the police ranks. But both sides soon discover there's a mole among them.

• 
  Leonardo DiCaprio

  Billy
• 
  Matt Damon

  Colin
• 
  Jack Nicholson

  Costello
• 
  Mark Wahlberg

  Dignam
• 
  Martin Sheen

  Queenan
• 
  Ray Winstone

  Mr. French
• 
  Vera Farmiga

  Madolyn
• 
  Anthony Anderson

  Brown
• 
  Alec Baldwin

  Ellerby
• 
  Kevin Corrigan

  Cousin Sean