Gregory Martin Itzin was an American character actor of film and television. He is best known for his role as Charles Logan in the action thriller series 24.
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Itzin joined the cast of 24 in 2005, halfway through its fourth season, in the recurring role as Vice President Charles Logan.
In the next season, the character had become President and was expanded to become one of the leading figures in the storyline. Itzin received an Emmy nomination for Outstanding Supporting Actor in a Drama Series for this performance.
Itzin died on July 8, 2022, aged 74.
Itzin held recurring roles on popular TV series such as;
- Friends as Theodore Hannigan, father of Mike Hannigan,
- Murder One,
- NCIS, and
- The Mentalist.
Itzin was also a frequent Star Trek actor, having played five different roles in the various series over the years.
He also starred in Fear and Loathing in Las Vegas as a Mint Hotel clerk, who looked and sounded a lot like actor McLean Stevenson on M*A*S*H.
He played a psychiatrist in the Lindsay Lohan thriller I Know Who Killed Me and, most recently, as a prison warden in Law Abiding Citizen.
On stage, Itzin has appeared in numerous theatrical venues across the country, and is a member of the Matrix Theatre Company in Los Angeles, where he has acted in award-winning productions of ;
- Waiting for Godot,
- The Homecoming, and
- The Birthday Party (each earning him an L.A. Drama Critics Circle Award for performance).

Image Credit: 24 Spoiler
Itzin was a special guest star on the Disney Channel hit show Hannah Montana in the season two episode “Test Of My Love” as a billionaire whose son becomes a romantic interest of Miley’s.
In 2010, he appeared as the Earl of Kent in the Antaeus Company’s production of King Lear. He won the L.A. Drama Critics Circle Award for this performance.
Gregory Itzin Movies And TV Shows
Film
| Year | Title | Role | Notes |
|---|---|---|---|
| 1980 | Airplane! | Religious Zealot #1 | |
| 1982 | The Best Little Whorehouse in Texas | Melvin’s Crew | |
| 1982 | Airplane II: The Sequel | Young Man | Uncredited |
| 1984 | Hard to Hold | Owen | |
| 1985 | Teen Wolf | English Teacher | |
| 1989 | The Fabulous Baker Boys | Vince Nancy | |
| 1989 | Dad | Ralph Kramer | |
| 1989 | How to Get… Revenge | Officer P.F. | Uncredited |
| 1993 | Young Goodman Brown | George Burroughs | |
| 1995 | Born to Be Wild | Walter Mallinson | |
| 1998 | Fear and Loathing in Las Vegas | Clerk at Mint Hotel | |
| 1999 | One Last Flight | Joe | |
| 1999 | Making Contact | Hans | |
| 2000 | What’s Cooking? | James Moore | |
| 2000 | Boys Life 3 | Scott’s Father | |
| 2001 | Evolution | Cartwright | |
| 2001 | Original Sin | Colonel Worth | |
| 2002 | Life or Something Like It | Dennis | |
| 2002 | Igby Goes Down | Eulogist #2 | Uncredited |
| 2002 | Adaptation | Prosecutor | |
| 2007 | I Know Who Killed Me | Dr. Greg Jameson | |
| 2008 | Float | Ray Fulton | |
| 2009 | Law Abiding Citizen | Warden Iger | |
| 2009 | The Job | Mr. D | |
| 2010 | Autopilot | Dr. Brian | |
| 2011 | L.A., I Hate You | George | |
| 2011 | The Change-Up | Flemming Steel | |
| 2011 | The Ides of March | Jack Stearns | |
| 2012 | Lincoln | John Archibald Campbell | |
| 2014 | Small Time | Lennie | |
| 2016 | Sensitivity Training | Barry | |
| 2018 | Ice: The Movie | Joe Grantham |
Television
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| Year | Title | Role | Notes |
|---|---|---|---|
| 1979 | Backstairs at the White House | White House Tour Guide | Episode #1.1 |
| 1979 | Mork & Mindy | Man #2 | Episode: “Dr. Morkenstein” |
| 1979 | Charlie’s Angels | Waiter | Episode: “Fallen Angel” |
| 1981 | Thornwell | Polygraph Tester | Television film |
| 1981 | Murder in Texas | Newsman | |
| 1981 | Bulba | V. Ogelthorpe | |
| 1982 | Fame | Dr. Reston | Episode: “To Soar and Never Falter” |
| 1982 | Lou Grant | Young Reporter | Episode: “Unthinkable” |
| 1982, 1983 | Voyagers! | Ernst / Davis | 2 episodes |
| 1983 | American Playhouse | Goldsmith | Episode: “Miss Lonelyhearts” |
| 1983 | The Other Woman | Mario | Television film |
| 1985 | Street Hawk | Harvey | Episode: “Vegas Run” |
| 1985 | Falcon Crest | Dr. Bitters | Episode: “The Trial” |
| 1985 | Santa Barbara | Attorney Howard Otis | 3 episodes |
| 1985 | Scarecrow and Mrs. King | Paul Cavanaugh | Episode: “You Only Die Twice” |
| 1985 | Tales from the Darkside | Newton | Episode: “Grandma’s Last Wish” |
| 1985 | Hunter | Charlie Latimer | Episode: “The Biggest Man in Town” |
| 1985 | Hill Street Blues | Dr. Kaplan | Episode: “Seoul on Ice” |
| 1985 | Hotel | Ed Banner | Episode: “Echoes” |
| 1986 | The A-Team | Howard | Episode: “Wheel of Fortune” |
| 1986 | Easy Street | Mr. Haskell | Episode: “Pride Goeth Before a Cheap Hotel” |
| 1986 | MacGyver | Tom Cavanaugh | Episode: “Final Approach” |
| 1986 | St. Elsewhere | Ving Shalimar | Episode: “Lost Weekend” |
| 1987 | Outlaws | Art Collier | Episode: “Hymn” |
| 1987 | Max Headroom | Gregory | Episode: “Deities” |
| 1987 | Frank’s Place | Brandon | Episode: “Season’s Greetings” |
| 1987–1992 | Matlock | Various | 5 episodes |
| 1987–1994 | L.A. Law | D.D.A. Jack Angeletti | 3 episodes |
| 1988 | 21 Jump Street | Principal Jack Garner | Episode: “Brother Hanson & the Miracle of Renner’s Pond” |
| 1988 | A Year in the Life | Joel | Episode: “Love Mother” |
| 1988 | Something Is Out There | Dr. Wilcher | Episode: “Gladiator” |
| 1989 | Knots Landing | Val’s Lawyer | Episode: “A Grave Misunderstanding” |
| 1989 | Jesse Hawkes | Frank Keith | Episode: “Eddy Street” |
| 1989 | The Nutt House | Dennis | 10 episodes |
| 1989, 1991 | Night Court | Mugger / Warren Karr | 2 episodes |
| 1989, 1991,1992 | Empty Nest | Judge Russell / Bill Wallace / Frank | 3 episodes |
| 1990 | Murphy Brown | Gil Porter | Episode: “On the Road Again” |
| 1990 | Head of the Class | Meriner | Episode: “Cement Hi-Tops” |
| 1990 | Coach | Tom | Episode: “Hayden’s in the Kitchen with Dinah” |
| 1990 | Over My Dead Body | Cosby / Crosby | 3 episodes |
| 1991 | Gabriel’s Fire | Evan Stahl | Episode: “A Prayer for the Goldsteins” |
| 1991 | Jake and the Fatman | Dr. Mike Summers | Episode: “Dr. Mike Summers” |
| 1991 | Dark Justice | Sterling Pope | Episode: “What Comes Around” |
| 1991 | DEA | Sam Blankenship | Episode: “The Fat Lady Sings Alone” |
| 1991 | Hi Honey – I’m Dead | Phil | Television film |
| 1991 | Homefront | Allan Carmichael | Episode: “Man, This Joint Is Jumping” |
| 1991–1992 | Eerie, Indiana | The Mayor | 4 episodes |
| 1992 | Davis Rules | Host | Episode: “Love at First Sighting: Part 2” |
| 1992 | Bodies of Evidence | Phillip Montgomery | Episode: “Time Served” |
| 1992 | Civil Wars | Tom Turnbull | 2 episodes |
| 1992 | Beverly Hills, 90210 | Father Chris | Episode: “Destiny Rides Again” |
| 1993 | Major Dad | Mitch Hewitt | Episode: “Come Rain or Come Shine” |
| 1993 | Shaky Ground | Repairman | Episode: “Asbestos and Costello” |
| 1993 | Quantum Leap | Sam Phillips | Episode: “Memphis Melody – July 3, 1954” |
| 1993 | Donato and Daughter | Cornell | Television film |
| 1993 | Moment of Truth: Stalking Back | Rick Boyer | |
| 1993, 1998 | Star Trek: Deep Space Nine | Hain / Ilon Tandro | Episodes: “Who Mourns for Morn?”; “Dax” |
| 1994 | Dave’s World | Alvin | Episode: “The Funeral” |
| 1994 | Picket Fences | Michael Kramer | 2 episodes |
| 1994–1995 | Something Wilder | Jack Travis | 15 episodes |
| 1995 | The Client | George Sherman | Episode: “The Burning of Atlanta” |
| 1995 | Strange Luck | Ted Glenn | Episode: “Hat Trick” |
| 1995 | Murder, She Wrote | Ralph Brewer | Episode: “Frozen Stiff” |
| 1995–1996 | Murder One | D.A. Roger Garfield | 17 episodes |
| 1996 | ER | Burn Doctor | Episode: “The Healer” |
| 1996 | Chicago Hope | Dr. Kyle Mitchell | Episode: “Sexual Perversity in Chicago Hope” |
| 1996 | Arliss | Tom Gale | Episode: “The Client’s Best Interest” |
| 1996 | Diagnosis: Murder | Andrew King | 2 episodes |
| 1996, 1998 | Caroline in the City | Hank Parsons / Mr. Lepner | |
| 1997 | Friends ‘Til the End | Mr. Romley | Television film |
| 1997 | The Pretender | Phil Campbell | Episode: “Jaroldo!” |
| 1997 | Millennium | Hans Ingram | Episode: “Walkabout” |
| 1997 | JAG | Undersecretary of State Lawrence Culbertson | Episode: “Above and Beyond” |
| 1997 | Players | Quentin Belkey | Episode: “Three of a Con” |
| 1997–2003 | The Practice | Various | 5 episodes |
| 1998 | Suddenly Susan | Bob | Episode: “Car Trouble” |
| 1998 | The Day Lincoln Was Shot | Mr. Crook | Television film |
| 1998 | The Closer | Larry Colburn | Episode: “My Best Friend’s Funeral” |
| 1998 | C-16: FBI | Royce Bender | Episode: “Green Card” |
| 1998 | Any Day Now | Councilman Emmett Kearn | Episode: “No Comment” |
| 1998 | Brother’s Keeper | Mr. Weaver | Episode: “Who’s Your Daddy?” |
| 1999 | V.I.P. | Ronnie Beeman | Episode: “Midnight in the Garden of Ronnie Beeman” |
| 1999 | Party of Five | School Psychologist | 2 episodes |
| 1999 | The Hunt for the Unicorn Killer | Arlen Specter | Television film |
| 1999 | Johnny Tsunami | Headmaster Pritchard | |
| 1999 | Wasteland | Max Brody | Episode: “Double Date” |
| 1999 | Early Edition | Bruce Bryce | Episode: “Camera Shy” |
| 1999 | It’s Like, You Know… | Chuck | 2 episodes |
| 2000 | Family Law | Mr. Allero | Episode: “Media Relations” |
| 2000 | Profiler | Joel Marks | 6 episodes |
| 2000 | Bull | Lloyd Styner | Episode: “What the Past Will Bring” |
| 2000 | Star Trek: Voyager | Dr. Dysek | Episode: “Critical Care” |
| 2000 | The Michael Richards Show | Matty Stillman | Episode: “It’s Only Personal” |
| 2000–2001 | Strip Mall | Sergei | 21 episodes |
| 2001 | CSI: Crime Scene Investigation | Norman Stirling | Episode: “Boom” |
| 2001–2005 | Judging Amy | ASA Ethan Donahue | 3 episodes |
| 2002 | Wolf Lake | Gerald Carter | Episode: “Leader of the Pack” |
| 2002 | Philly | Paul Cabretti | Episode: “Thanks for the Mammaries” |
| 2002 | The West Wing | State Dept. Representative | Episode: “Enemies Foreign and Domestic” |
| 2002 | For the People | Judge Donald Kingman | Episode: “The Double Standard” |
| 2002 | Firefly | Magistrate Higgins | Episode: “Jaynestown” |
| 2002 | NYPD Blue | Martin Walsh | Episode: “Healthy McDowell Movement” |
| 2002–2004 | Friends | Theodore Hannigan | 2 episodes |
| 2002, 2005 | Star Trek: Enterprise | Adm. Black / Capt. Sopek | Episodes: “In a Mirror, Darkly Part II”; “Shadows of P’Jem” |
| 2003 | Without a Trace | Sydney’s co-worker | Episode: “Fallout: Part 1” |
| 2003 | DC 9/11: Time of Crisis | John Ashcroft | Television film |
| 2003 | The Lyon’s Den | Mr. Thomas | Episode: “The Other Side of Caution” |
| 2003, 2020 | NCIS | Director Charlie / Spencer Downing | 3 episodes |
| 2004 | Medical Investigation | Howard Lewson | Episode: “Progeny” |
| 2004 | The O.C. | Stephen Herbert | Episode: “The New Era” |
| 2005 | Crossing Jordan | Andrew Helm | Episode: “Gray Murders” |
| 2005 | Boston Legal | A.D.A. Todd Milken | 2 episodes |
| 2005–2010 | 24 | Charles Logan | 44 episodes |
| 2007 | Robot Chicken | William Adama / Dick Tracy / Police Officer | Episode: “Rabbits on a Roller Coaster” |
| 2007 | Nice Girls Don’t Get the Corner Office | Stone | Television film |
| 2008 | Medium | Senator Jed Garrity | Episode: “Aftertaste” |
| 2008 | Hannah Montana | William Harris | Episode: “The Test of My Love” |
| 2008–2012 | The Mentalist | Virgil Minelli | 15 episodes |
| 2010 | Proposition 8 Trial Re-Enactment | David Blankenhorn | Television documentary |
| 2010–2013 | Covert Affairs | Henry Wilcox | 25 episodes |
| 2011 | Big Love | Senator Dwyer | 9 episodes |
| 2011 | Desperate Housewives | Dick Barrows | 2 episodes |
| 2013 | Once Upon a Time | Alphonse Frankenstein | Episode: “In the Name of the Brother” |
| 2013 | Mob City | Mayor Fletcher Bowron | 6 episodes |
| 2015 | Hawaii Five-0 | Alex Mackey | Episode: “Poina ‘ole” |
| 2016 | 12 Deadly Days | Grandpa | Episode: “Love Bites” |
| 2018 | Code Black | Dr. David Stoval | Episode: “Hell’s Heart” |
| 2018 | America 2.0 | President Ward Baker | Episode: “Ice” |
| 2019 | The Resident | Sunflower | Episode: “The Unbefriended” |


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