Dermot Mulroney grew up in Alexandria, Virginia, and went to Maury Elementary School. He played the cello in school and city youth orchestras and acted in children's community theater. He made his high school stage debut in an awful play called "Are Teachers Human?" at George Washington Middle School. He graduated from T.C. Williams High School in 1981. His dad was a lawyer. He grew up with three brothers - Sean, Conor and Kieran Mulroney (now also an actor) - and a sister named Moira.

1. Stoker (2012) - Richard Stoker 2. The Grey (The Grey: La limita supravieţuirii) (2012) - Actor 3. Big Miracle (Big Miracle) (2012) - Actor 4. Beyond (2011) - Actor 5. The Family Tree (2011) - Jack Burnett 6. Love, Wedding, Marriage (2011) - Regizor

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7. J. Edgar (J. Edgar) (2011) - Colonel Schwarzkopf

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8. Abduction (Răpirea) (2011) - Actor

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9. Inhale (2010) - Paul Stanton

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10. Burn After Reading (2008) - Star of "Coming Up Daisy"

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11. The Memory Keeper's Daughter (2008) - Dr. David Henry 12. Flash of Genius (2008) - Gil Previck

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13. Gracie (2007) - Bryan Bowen

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14. Georgia Rule (2007) - Dr. Simon Ward

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15. Julia Roberts: An American Cinematheque Tribute (2007) - Himself 16. Zodiac (2007) - Captain Marty Lee

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17. The Wedding Date (2005) - Nick Mercer 18. American Express Jam Sessions (2005) - Himself 19. Must Love Dogs (2005) - Bob 20. "The Batman" (2004) - Green Lantern (3 episodes, 2007-2008) 21. About Schmidt (2002) - Randall Hertzel 22. Investigating Sex (2002) - Edgar 23. My Best Friend's Wedding (1997) - Michael O'Neal 24. The Trigger Effect (1996) - Joe 25. Living in Oblivion (1995) - Wolf 26. Bad Girls (1994) - Josh McCoy 27. "Friends" (1994) - Gavin (3 episodes, 2003) 28. There Goes My Baby (1994) - Pirate 29. The Thing Called Love (1993) - Kyle Davidson 30. Silent Tongue (1993) - Reeves McCree 31. The Last Outlaw (1993) - Eustis 32. Point of No Return (1993) - J.P. 33. The Heart of Justice (1992) - Elliot Burgess 34. Longtime Companion (1989) - John 35. Sunset (1988) - Michael Alperin

1. Graduated from Northwestern University in 1985, where he attended the School of Speech.

2. Was in a band called "The Low & Sweet Orchestra". Now plays in a band called the "Cranky George Trio".

3. Was a member of Phi Gamma Delta fraternity at Northwestern University.

4. Sister Moira works in the Philadelphia DA's office as an assistant district attorney.

5. First child born, with Catherine Keener, a son named Clyde Mulroney. [June 1999]

6. Mulroney's younger brother Kieran Mulroney is also an actor. The brothers starred together in the John Hughes comedy, Career Opportunities (1991) with Jennifer Connelly and Frank Whaley.

7. He and his younger brother, Sean Mulroney, are co-owners of "The Double Door", one of Chicago's more popular music clubs.

8. Was married to actress Catherine Keener from 1990-2007. They met in 1987 when filming Survival Quest (1989).

9. Plays cello in the song Place Your Mind from Melissa Etheridge's 1992 album Never Enough, and in the score to Mission: Impossible III (2006).

10. Good friends with Brad Pitt and Julia Roberts.

11. Born on the same day as actor/comedian Rob Schneider.

12. Plays double bass and cello on the debut EP of Rain Phoenix and Summer Phoenix's band, 'Papercranes'.

13. Lives in Los Angeles.

14. He is sometimes confused with actor Dylan McDermott; there is a slight resemblance and a similar sounding name.

15. Is of predominantly Irish ancestry. All of his siblings have traditional Irish names

16. Attended T.C. Williams High School, which later became the setting of a Disney movie with Denzel Washington.

17. Former brother-in-law of Elizabeth Keener.

18. Both of his parents were originally from Iowa.

19. He has 2 children with his wife, Tharita Cesaroni.

20. He got the scar on his lip from falling on a piece of glass when he was three.