Stephen Root (born November 17, 1951) is an American actor. He is principally known for his comedic work, but has won acclaim for his occasional dramatic roles. Description above from the Wikipedia article Stephen Root, licensed under CC-BY-SA, full list of contributors on Wikipedia.
| Movie | Unbearable Christmas | 2026 | |
| Movie | Dog Man | Grampa (voice) | 2025-01-24 |
| Movie | Heads of State | Arthur Hammond | 2025-06-24 |
| Series | Masters of the Universe: Revolution | Cringer (voice) | 2024-01-25 |
| Movie | Paint | Tony | 2023-04-06 |
| Movie | Beavis and Butt-Head Do the Universe | Jail Tattoo Artist (voice) | 2022-06-23 |
| Movie | To Leslie | Dutch | 2022-10-07 |
| Movie | Happily | Goodman | 2021-03-19 |
| Movie | Four Good Days | Chris | 2021-04-30 |
| Movie | Home | Father Browning | 2021-07-29 |
| Movie | Queenpins | Agent Flannigan | 2021-08-26 |
| Movie | The Tragedy of Macbeth | Porter | 2021-12-05 |
| Movie | Uncle Frank | Daddy Mac | 2020-11-25 |
| Movie | The Empty Man | Arthur Parsons | 2020-10-22 |
| Movie | Seberg | Walt Breckman | 2019-12-13 |
| Movie | Jay and Silent Bob Reboot | Cockmando (voice) | 2019-10-15 |
| Movie | Bombshell | Neil Mullin | 2019-12-13 |
| Series | Barry | Monroe Fuches | 2018-03-25 |
| Movie | The Ballad of Buster Scruggs | Teller (segment "Near Algodones") | 2018-11-09 |
| Movie | Life of the Party | Mike Cook | 2018-05-10 |
| Movie | On the Basis of Sex | Professor Brown | 2018-12-25 |
| Movie | Get Out | Jim Hudson | 2017-02-24 |
| Movie | Infinity Baby | Fenton | 2017-03-11 |
| Movie | The Lego Ninjago Movie | Additional Voices (voice) | 2017-09-21 |
| Movie | Miles | Ron Walton | 2017-06-09 |
| Movie | Three Christs | Dr. Rogers | 2017-09-23 |
| Movie | Cook-Off! | Morty Van Rookle | 2017-11-17 |
| Series | Idiotsitter | Ken Russel | 2016-01-14 |
| Movie | All the Way | J. Edgar Hoover | 2016-05-23 |
| Movie | Tom and Jerry: Back to Oz | Uncle Henry (voice) | 2016-06-21 |
| Movie | Spectral | Dr. Mindala | 2016-12-09 |
| Movie | Mike and Dave Need Wedding Dates | Burt | 2016-07-07 |
| Movie | Finding Dory | Bubbles (voice) | 2016-06-16 |
| Movie | 7 Chinese Brothers | George | 2015-08-14 |
| Movie | Trumbo | Hymie King | 2015-10-27 |
| Movie | Hello, My Name Is Doris | Todd | 2015-11-27 |
| Movie | I Know That Voice | Self | 2014-01-07 |
| Movie | Selma | Col. Al Lingo | 2014-12-25 |
| Movie | Lennon or McCartney | Self | 2014-12-12 |
| Movie | The Arrangement | Avery Boomer | 2013-01-01 |
| Movie | Superman: Unbound | Zor-El (voice) | 2013-04-23 |
| Movie | Bad Milo! | Roger | 2013-08-28 |
| Movie | The Lone Ranger | Habberman | 2013-07-03 |
| Movie | Sweetwater | Hugh | 2013-10-09 |
| Movie | Big Miracle | Governor Haskell | 2012-02-02 |
| Series | Gravity Falls | Bud Gleeful (voice) | 2012-06-15 |
| Movie | The Company You Keep | Billy Cusimano | 2012-12-20 |
| Series | DreamWorks Dragons | Mildew (voice) | 2012-08-07 |
| Movie | Rango | Doc / Merrimack / Mr. Snuggles (voice) | 2011-03-02 |
| Movie | Cedar Rapids | Bill Krogstad | 2011-02-11 |
| Movie | The Conspirator | John Lloyd | 2011-04-15 |
| Movie | Son of Morning | Senator Larder | 2011-02-28 |
| Movie | Everything Must Go | Elliot | 2011-05-13 |
| Movie | J. Edgar | Arthur Koehler | 2011-11-09 |
| Movie | Batman: Year One | Brendon (voice) | 2011-09-27 |
| Movie | Red State | Sherrif Wynan | 2011-08-19 |
| Movie | Tom and Jerry & The Wizard of Oz | Uncle Henry / Crows (voice) | 2011-08-13 |
| Movie | Unthinkable | Charles Thompson | 2010-05-26 |
| Movie | Scooby-Doo! Camp Scare | Burt (voice) | 2010-09-14 |
| Movie | The Men Who Stare at Goats | Gus Lacey | 2009-10-17 |
| Movie | Bob Funk | Steve | 2009-03-20 |
| Movie | The Soloist | Curt Reynolds | 2009-04-24 |
| Movie | Dr. Dolittle: Million Dollar Mutts | Turtle (voice) | 2009-04-08 |
| Movie | 13 Scarier Movie Moments | Self | 2009-10-10 |
| Movie | Imagine That | Fred Franklin | 2009-06-19 |
| Series | Glenn Martin, DDS | Unknown | 2009-08-17 |
| Movie | Over Her Dead Body | Sculptor | 2008-02-01 |
| Movie | Drillbit Taylor | Principal Doppler | 2008-02-04 |
| Movie | Mad Money | Glover | 2008-01-17 |
| Movie | Leatherheads | Suds | 2008-03-24 |
| Series | Fringe | Unknown | 2008-09-09 |
| Series | True Blood | Eddie | 2008-09-07 |
| Movie | Tripping the Rift: The Movie | Chode (voice) | 2008-03-25 |
| Movie | Have Dreams, Will Travel | Sheriff Brock | 2007-05-21 |
| Series | Californication | Ricardo Collini | 2007-08-13 |
| Series | The Big Bang Theory | Dan | 2007-09-24 |
| Movie | No Country for Old Men | Man Who Hires Wells | 2007-11-09 |
| Series | Pushing Daisies | Dwight Dixon | 2007-10-03 |
| Movie | Ice Age: The Meltdown | Aardvark Dad (voice) | 2006-03-29 |
| Movie | Gretchen | Herb | 2006-08-05 |
| Series | The Path to 9/11 | Richard Clarke | 2006-09-10 |
| Movie | The Fox and the Hound 2 | Talent Scout (voice) | 2006-11-09 |
| Movie | Idiocracy | Judge Hector "The Hangman" (uncredited) | 2006-09-01 |
| Series | Unscripted | Unknown | 2005-01-09 |
| Series | American Dad! | Unknown | 2005-02-06 |
| Series | The X's | Unknown | 2005-11-25 |
| Movie | Just Friends | KC | 2005-11-23 |
| Movie | Kim Possible Movie: So the Drama | Cowboy Gambler (voice; uncredited) | 2005-04-08 |
| Movie | Raising Genius | Dwight Nestor | 2004-03-10 |
| Series | Tripping the Rift | Chode (voice) | 2004-03-04 |
| Movie | The Ladykillers | Fernand Gudge | 2004-03-25 |
| Series | Boston Legal | Unknown | 2004-10-03 |
| Movie | Jersey Girl | Greenie | 2004-03-25 |
| Movie | Surviving Christmas | Dr. Freeman | 2004-09-21 |
| Movie | DodgeBall: A True Underdog Story | Gordon | 2004-06-18 |
| Movie | Wake Up, Ron Burgundy: The Lost Movie | Vince Masters | 2004-12-28 |
| Movie | Finding Nemo | Bubbles (voice) | 2003-05-30 |
| Movie | Grind | Cameron | 2003-08-15 |
| Series | Teen Titans | Unknown | 2003-07-19 |
| Movie | Ice Age | Frank / Start (voice) | 2002-03-14 |
| Movie | The Country Bears | Zeb Zoober (voice) | 2002-07-26 |
| Series | Kim Possible | Unknown | 2002-06-07 |
| Series | Grounded for Life | Unknown | 2001-01-10 |
| Series | The Andy Dick Show | 2001-02-27 | |
| Series | The Legend of Tarzan | Unknown | 2001-09-03 |
| Series | According to Jim | Unknown | 2001-10-03 |
| Series | 24 | Unknown | 2001-11-06 |
| Series | The Proud Family | Unknown | 2001-09-15 |
| Series | Malcolm in the Middle | Unknown | 2000-01-09 |
| Movie | O Brother, Where Art Thou? | Radio Station Man | 2000-08-30 |
| Series | Ed | Unknown | 2000-10-08 |
| Series | DAG | Unknown | 2000-11-14 |
| Series | CSI: Crime Scene Investigation | Unknown | 2000-10-06 |
| Movie | Office Space | Milton Waddams | 1999-02-19 |
| Movie | The Monster Hunter | Mr. Crenshaw | 1999-01-01 |
| Movie | Gut Feeling | Kane Cohen | 1999-01-01 |
| Series | The Norm Show | Unknown | 1999-03-24 |
| Series | Courage the Cowardly Dog | Unknown | 1999-11-12 |
| Movie | Bicentennial Man | Dennis Mansky | 1999-12-17 |
| Movie | The Sissy Duckling | Big Ducky (voice) | 1999-09-14 |
| Series | The West Wing | Unknown | 1999-09-22 |
| Series | Ladies Man | Gene | 1999-09-20 |
| Series | The Big Guy and Rusty the Boy Robot | Dr. Donovan (voice) | 1999-09-18 |
| Series | From the Earth to the Moon | Chris Kraft | 1998-04-05 |
| Movie | Krippendorf's Tribe | Gerald Adams | 1998-02-27 |
| Series | King of the Hill | Bill Dauterive (voice) | 1997-01-12 |
| Series | Just Shoot Me! | Unknown | 1997-03-04 |
| Movie | steve.oedekerk.com | 1997-09-03 | |
| Movie | The Road to Galveston | Ed Kirkman | 1996-01-24 |
| Series | Superman: The Animated Series | Unknown | 1996-09-06 |
| Series | Profiler | Unknown | 1996-09-21 |
| Movie | The Lottery | Graham Dunbar | 1996-09-29 |
| Series | Pandora's Clock | Mark Hastings | 1996-11-10 |
| Series | VR.5 | Unknown | 1995-03-10 |
| Series | Cybill | Unknown | 1995-01-02 |
| Series | NewsRadio | Jimmy James | 1995-03-21 |
| Movie | Bye Bye Love | Awakened Neighbor | 1995-03-16 |
| Movie | In the Line of Duty: Hunt for Justice | Jaan Laaman | 1995-10-01 |
| Movie | Night of the Scarecrow | Frank | 1995-08-08 |
| Series | Christy | Unknown | 1994-04-03 |
| Series | Party of Five | Unknown | 1994-09-12 |
| Series | Chicago Hope | Unknown | 1994-09-18 |
| Movie | Her Final Fury: Betty Broderick, the Last Chapter | Kevin McDonald | 1994-10-14 |
| Movie | Class of '61 | Secretary of War Edwin Stanton | 1993-04-12 |
| Movie | RoboCop 3 | Coontz | 1993-01-21 |
| Movie | Black Widow Murders: The Blanche Taylor Moore Story | Dr. Kirby | 1993-05-03 |
| Movie | Dave | Don Durenberger | 1993-05-07 |
| Series | Diagnosis: Murder | Unknown | 1993-10-29 |
| Series | Frasier | Harbin | 1993-09-16 |
| Movie | Extreme Justice | Max Alvarez | 1993-06-26 |
| Series | Harts of the West | R.O | 1993-09-25 |
| Movie | A Woman Scorned: The Betty Broderick Story | Kevin McDonald | 1992-03-01 |
| Series | The Golden Palace | Unknown | 1992-09-18 |
| Movie | Buffy the Vampire Slayer | Gary Murray | 1992-07-24 |
| Series | Golden Years | Major Moreland | 1991-07-16 |
| Movie | Guilty by Suspicion | RKO Guard | 1991-03-15 |
| Movie | V.I. Warshawski | Mickey | 1991-07-26 |
| Movie | Golden Years | Major Moreland | 1991-07-16 |
| Series | Home Improvement | Exterminator | 1991-09-17 |
| Series | Civil Wars | Unknown | 1991-11-20 |
| Series | Eerie, Indiana | Mr. Chaney | 1991-09-15 |
| Movie | Bed & Breakfast | Randolph | 1991-09-22 |
| Series | The Torkelsons | Unknown | 1991-09-21 |
| Movie | Stanley & Iris | Mr. Hentley | 1990-02-09 |
| Movie | Ghost | Police Sgt. | 1990-07-13 |
| Series | Northern Exposure | Unknown | 1990-07-12 |
| Series | Blossom | Unknown | 1990-07-05 |
| Series | Quantum Leap | Unknown | 1989-03-26 |
| Series | Seinfeld | Unknown | 1989-07-05 |
| Movie | Black Rain | Berg | 1989-09-22 |
| Movie | Monkey Shines | Dean Burbage | 1988-07-29 |
| Movie | Crocodile Dundee II | DEA Agent (Toilet) | 1988-05-19 |
| Series | Roseanne | Unknown | 1988-10-18 |
| Series | Murphy Brown | Unknown | 1988-11-14 |
| Series | Wiseguy | Unknown | 1987-09-16 |
| Series | Jake and the Fatman | Unknown | 1987-09-26 |
| Series | Star Trek: The Next Generation | Captain K'Vada | 1987-09-28 |
| Series | L.A. Law | Unknown | 1986-09-15 |