1. The Change-Up (Dacă aş fi... tu?) (2011) - Flemming Steel

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2. The Ides of March (Ziua trădătorilor) (2011) - Jack Stearns 3. Law Abiding Citizen (2009) - Warden Iger

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4. "The Mentalist" (2008) - Virgil Minelli (14 episodes, 2008-2010) 5. I Know Who Killed Me (2007) - Dr. Greg Jameson

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6. Forfeit (2007) - Actor 7. "Boston Legal" (2004) - A.D.A. Todd Milken (2 episodes, 2005) 8. "Desperate Housewives" (2004) - Dick Barrows (2 episodes, 2011) 9. "NCIS: Naval Criminal Investigative Service" (2003) - FBI Director (2 episodes, 2003) 10. DC 9/11: Time of Crisis (2003) - Atty. Gen. John Ashcroft 11. Life or Something Like It (2002) - Dennis (as Greg Itzin) 12. Original Sin (2001) - Colonel Worth 13. "Enterprise" (2001) - Admiral Black / ... (2 episodes, 2002-2005) 14. "24" (2001) - President Charles Logan / ... (44 episodes, 2005-2010) 15. Johnny Tsunami (1999) - Headmaster Pritchard 16. Fear and Loathing in Las Vegas (1998) - Clerk at Mint Hotel 17. The Day Lincoln Was Shot (1998) - Mr. Crook 18. "Murder One" (1995) - D.A. Roger Garfield (17 episodes, 1995-1996) 19. Born to Be Wild (1995) - Walter Mallinson 20. "Friends" (1994) - Theodore Hanigan / ... (2 episodes, 2002-2004) 21. "Star Trek: Deep Space Nine" (1993) - Hain / ... (2 episodes, 1993-1998) 22. "Eerie, Indiana" (1991) - The Mayor (4 episodes, 1991-1992) 23. "Night Court" (1984) - Mugger / ... (4 episodes, 1989-1991) 24. Airplane! (1980) - Religious Zealot #1

1. Was nominated for Broadway's 1994 Tony Award as Best Actor (Featured Role - Play) for "The Kentucky Cycle".

2. He has played five characters in the last three "Star Trek" (1966) spin-offs.

3. Before playing the President of the United States on "24" (2001), he played a presidential candidate in a commercial for cheese.

4. Lives in Los Angeles with his wife, an artist, and their two children Will (b. 1983) and Julia (b. 1986).

5. According to the producers of "24" (2001), his resemblance to president Richard Nixon was not deliberate; it was merely a coincidence.