The Departed (2006) Cast & Character Guide — No Spoilers | Who's That?

Who plays who in The Departed (2006)? Browse a spoiler-free character guide with photos of every major character and the actors behind them, including Leonardo DiCaprio, Matt Damon, Jack Nicholson.

• Billy — played by Leonardo DiCaprio
• Colin — played by Matt Damon
• Costello — played by Jack Nicholson
• Dignam — played by Mark Wahlberg
• Queenan — played by Martin Sheen
• Mr. French — played by Ray Winstone
• Madolyn — played by Vera Farmiga
• Brown — played by Anthony Anderson
• Ellerby — played by Alec Baldwin
• Cousin Sean — played by Kevin Corrigan
• Barrigan — played by James Badge Dale
• Fitzy — played by David O'Hara
• Delahunt — played by Mark Rolston
• Lazio (FBI) — played by Robert Wahlberg
• Gwen — played by Kristen Dalton
• Govenor — played by Thomas B. Duffy
• Uncle Edward — played by Richard Hughes
• Realtor — played by J.C. MacKenzie
• Billy's Aunt — played by Mary Klug
• Mrs. Kennefick — played by Peg Holzemer