Gregory Itzin is an American actor best known for his role as President Charles Logan on the television action series 24.
In the 4th season of the show his character was simply Charles Logan, and Itzin was credited as a guest star. From the 5th season on he has been President Charles Logan, and a main credited cast member.
Itzin received an Emmy nomination for Outstanding Supporting Actor in a Drama Series for this role in 2006.
Itzin has held recurring roles on popular TV series such as Friends, Murder One, NCIS, The OC, Judging Amy, Boston Legal, CSI: Crime Scene Investigation, and the short-lived science fiction series, Firefly.
He played five different characters in The Practice, over multiple seasons of the show. He also portrayed John Ashcroft in the 2003 television movie DC 9/11: Time of Crisis.
He is also a frequent Star Trek actor, having played five different roles in the various series over the years; his most recent Trek role was Admiral Black in Star Trek: Enterprise.
He made his first Star Trek appearance in 1993, in the Star Trek: Deep Space Nine episode "Dax". He later guest starred in DS9 again, in the sixth season episode "Who Mourns for Morn?"
Other television shows Itzin has appeared in include Mork & Mindy; Charlie's Angels; Fame; Santa Barbara; Falcon Crest; Dallas; Hunter; Hill Street Blues; The A-Team; MacGyver; St. Elsewhere; 21 Jump Street; Knots Landing; Murphy Brown; Jake And The Fatman; Night Court; Empty Nest; Beverly Hills, 90210; Matlock; Major Dad; Quantum Leap; L.A. Law; Picket Fences; Murder, She Wrote; ER; Chicago Hope; Millennium; Suddenly Susan; JAG; Party Of Five; Early Edition; The West Wing; NYPD Blue; Without A Trace; and Medical Investigation.
Itzin has appeared (or will appear) in the following made-for-TV movies to date:
Murder in Texas (1981)
Miss Lonelyhearts (1983)
The Other Woman (1983)
Carly's Web (1987)
Over My Dead Body (1990)
Hi Honey - I'm Dead (1991)
Donato and Daughter (1993)
Moment of Truth: Stalking Back (1993)
Innocent Victims (1996)
The Ultimate Lie (1996)
Friends 'Til the End (1997)
The Day Lincoln Was Shot (1998)
The Hunt for the Unicorn Killer (1999)
Johnny Tsunami (1999)
DC 9/11: Time of Crisis (2003)
Nice Girls Don't Get the Corner Office (2007)
Feature films he has appeared in include Airplane! (1980), The Best Little Whorehouse in Texas (1982), Teen Wolf (1985), The Fabulous Baker Boys (1989), Young Goodman Brown (1993), Born to Be Wild (1995), Fear and Loathing in Las Vegas (1998), Small Soldiers (1998), Boys Life 3 (2000), Evolution (2001), Original Sin (2001), Igby Goes Down (2002), and Adaptation. (2002).