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Billy Costigan

Pictures

Costigan and Costello

Quotes

Colin Sullivan: Do you know what will happen if you shoot me?
Billy Costigan: Yeah, this bullet will go right through your fucking head!

Billy Costigan

From: The Departed
Played by: Leonardo DiCaprio

Bio

Billy Costigan is an undercover cop working for the Special Investigations Unit of Massachusetts's State Police. He's chosen to infiltrate Frank Costello's Organization. From there, The Departed takes off.