1. Contraband (Contrabandă) (2012) - Captain

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2. The Words (2012) - Actor 3. The Music Never Stopped (2011) - Henry Sawyer

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4. Young Adult (Tânăra adultă) (2011) - Narrator 5. Cats & Dogs: The Revenge of Kitty Galore (2010) - Gruff K-9 (voice)

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6. A Beginner's Guide to Endings (2010) - Uncle Pal 7. Crazy on the Outside (2010) - Ed

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8. Megamind (2010) - Warden (voice)

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9. 4192: The Crowning of the Hit King (2010) - Narrator

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10. An Invisible Sign (2010) - Mr. Jones

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11. True Grit (Adevăratul curaj) (2010) - J. Noble Daggett (voice) (uncredited)

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12. I Love You, Man (2009) - Oswald Klaven

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13. Post Grad (2009) - Roy Davies 14. Aliens in the Attic (Extratereştrii din mansardă) (2009) - Skip (voice) 15. Extract (2009) - Brian

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16. Jennifer's Body (2009) - Mr. Wroblewski

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17. Up in the Air (2009) - Bob

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18. New in Town (2009) - Stu Kopenhafer

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19. Burn After Reading (2008) - CIA Superior (as JK Simmons)

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20. Breaking Down the Closer (2007) - Actor 21. Spider-Man 3 (2007) - J. Jonah Jameson (voice) 22. Rendition (2007) - Lee Mayer

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23. Spider-Man 3 (2007) - J. Jonah Jameson 24. Postal (2007) - Candidate Welles

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25. Juno (2007) - Mac MacGuff

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26. "American Dad!" (2005) - Judge / ... (3 episodes, 2007-2011) 27. Harsh Times (2005) - Agent Richards 28. "The Closer" (2005) - Assistant Chief Will Pope / ... (97 episodes, 2005-2011) 29. The Ladykillers (2004) - Garth Pancake 30. Hidalgo (2004) - Buffalo Bill Cody 31. Making the Amazing (2004) - Himself 32. Spider-Man 2 (2004) - J. Jonah Jameson 33. Spider-Man (2002) - J. Jonah Jameson 34. "Justice League" (2001) - General Wade Eiling / ... (5 episodes, 2004-2006) 35. Beautiful Joe (2000) - (uncredited) 36. Autumn in New York (2000) - Dr. Tom Grandy 37. For Love of the Game (1999) - Frank Perry (as JK Simmons) 38. "Law & Order: Special Victims Unit" (1999) - Dr. Emil Skoda (6 episodes, 2000-2001) 39. The Cider House Rules (1999) - Ray Kendall 40. Celebrity (1998) - Souvenir Hawker 41. Anastasia (Anastasia) (1997) - Ensemble and Character Vocals 42. Extreme Measures (1996) - Dr. Mingus 43. "New York Undercover" (1994) - Psychologist / ... (2 episodes, 1996-1998) 44. "Law & Order" (1990) - Dr. Emil Skoda / ... (46 episodes, 1994-2010) 45. The Simpsons (1989) - J. Jonah Jameson / ... (2 episodes, 2006-2007)

1. He is the father of two children. He has a sister, Elizabeth Simmons O'Neill, and a brother David.

2. Is the voice of the yellow M&M on the commercials.

3. Voiceover work for Norelco razors.

4. Graduate of the University of Montana. Received an Achievement Award for the UofM in April 2002. Studied to become a composer before getting to musicals and acting.

5. His character of Dr. Emil Skoda is one of the few "Law & Order" (1990) recurring characters to span all three incarnations: the original series; "Law & Order: Special Victims Unit" (1999) and "Law & Order: Criminal Intent" (2001) (the medical examiner, Elizabeth Rodgers (Leslie Hendrix), has also appeared on all three shows).

6. Before playing police psychiatrist "Dr. Emil Skoda" on "Law & Order" (1990), he played a fanatical nut-case suspect on a crossover episode of "Law & Order" (1990) and "Homicide: Life on the Street" (1993). He is among the few recurring members to have a guest spot as one character on a "Law & Order" series before going on to play a different character in the L&O universe (others include S. Epatha Merkerson and Jerry Orbach). Ice-T played a criminal who met a "striking" fate in Exiled (1998) (TV) before going on to star as Det. Odafin "Fin" Tutuola in "Law & Order: Special Victims Unit" (1999).

7. Attended The Ohio State University while living in Worthington, Ohio. Still remains a huge Ohio State sports fan today.

8. Appeared in four films with Bruce Campbell. The first two were Spider-Man (2002) and Spider-Man 2 (2004), both directed by Sam Raimi. The third was The Ladykillers (2004) directed by Ethan Coen, who frequently collaborates with Raimi, followed by another appearance with Campbell in Raimi's Spider-Man 3 (2007).

9. Played the manager of his hometown pro baseball team, the Detroit Tigers, in For Love of the Game (1999).

10. Wore a wig to play J. Jameson in the Spiderman films.

11. Met his wife, Michelle Schumacher, during a tour of "Peter Pan".

12. Has been in all the feature films of Jason Reitman.

13. He has played the same character (Dr. Emil Skoda) in four different television series: "Law & Order" (1990), "New York Undercover" (1994), "Law & Order: Special Victims Unit" (1999) and "Law & Order: Criminal Intent" (2001).