Kirk Thornton (born Sean Thornton) is an American voice actor who has provided voices for a number of English-language versions of Japanese anime films and television series.
| Movie | Bean Bandit | Bean Bandit | 2021-01-20 |
| Movie | Spycies | Vladimir (voice) | 2020-01-11 |
| Movie | Alien Xmas | Reindeer / Klepts / Audience (voice) | 2020-11-20 |
| Movie | The Queen's Corgi | Trump (voice) | 2019-02-13 |
| Movie | Playmobil: The Movie | Ook-Ook (voice) | 2019-06-10 |
| Movie | 6 Balloons | Loop Group (voice) | 2018-03-12 |
| Movie | Breaking In | ADR Performers (voice) | 2018-05-05 |
| Movie | The Ladybug | Tall Bee (voice) | 2018-02-02 |
| Movie | Hotel Transylvania 3: Summer Vacation | Additional Voices (voice) | 2018-06-28 |
| Series | Pucca: Love Recipe | Uncle Dumpling / Bruce (voice) | 2018-12-10 |
| Movie | Smallfoot | Loop Group (voice) | 2018-09-20 |
| Movie | The Swan Princess: Royally Undercover | Count Antonio | 2017-03-26 |
| Movie | The Son of Bigfoot | Japanese Man #1 (voice) | 2017-07-26 |
| Series | Marvel's Future Avengers | Narrator | 2017-07-22 |
| Movie | The Jungle Bunch | Maurice (voice) | 2017-07-26 |
| Movie | Battle of the Sexes | Additional Voices (voice) | 2017-09-22 |
| Movie | Independence Day: Resurgence | Additional Voices (voice) | 2016-06-22 |
| Movie | Kingsglaive: Final Fantasy XV | Newscaster (voice) | 2016-07-09 |
| Movie | Blood Father | Voice Actors (voice) | 2016-08-11 |
| Movie | The Nutcracker Sweet | Drosselmeyer / Commander / Mice (voice) | 2015-06-03 |
| Movie | Hatched: Chicks Gone Wild! | Vik von Vulture (voice) | 2015-07-17 |
| Movie | Maggie | Voiceover Talent (voice) | 2015-05-08 |
| Movie | Truth | Loop Groupers (voice) | 2015-10-16 |
| Movie | Air Bound | Shiloh (voice) | 2015-10-10 |
| Movie | Hotel Transylvania 2 | Additional Voices (voice) | 2015-09-21 |
| Movie | Iesodo: Kindness | Jacob (voice) | 2015-09-09 |
| Series | Sonic Boom | Orbot / Shadow the Hedgehog (voice) | 2014-11-08 |
| Series | Pokémon Origins | Mr. Fuji | 2013-10-02 |
| Movie | Kingdom Hearts 358/2 Days | Saix (Voice) | 2013-03-14 |
| Series | The Bat Man of Shanghai | Bane / Bat-Man (voice) | 2012-07-14 |
| Movie | A Letter to Momo | Kazuo (voice) | 2012-04-21 |
| Movie | The Snow Queen | Housemaster/Servant/Red Head/Robbers (voice) | 2012-10-11 |
| Movie | Drive | Loop Group (voice) | 2011-09-15 |
| Movie | 超蛙战士之初露锋芒 | Conner (voice) | 2010-03-24 |
| Series | The Avengers: Earth's Mightiest Heroes | Adam Warlock / Cop (voice) | 2010-10-20 |
| Series | Huntik: Secrets & Seekers | 2009-01-03 | |
| Movie | Superman: Red Son | Jimmy Olsen / Batman / Green Lantern (Hal Jordan) / Pyotr Roslov | 2009-07-30 |
| Movie | Happily N'Ever After 2 | Munk (voice) | 2009-03-24 |
| Movie | Resident Evil: Degeneration | U.S. President (voice) | 2008-02-13 |
| Movie | Adventures in Voice Acting | Self | 2008-07-03 |
| Movie | The Toy Warrior | RJ (voice) | 2006-04-15 |
| Movie | Brave Story | Akira Mitsuya (English version, voice) | 2006-05-22 |
| Series | Doraemon | Big G's Dad | 2005-04-22 |
| Series | Bobobo-bo Bo-bobo | Unknown | 2005-10-01 |
| Series | MÄR: Märchen Awakens Romance | Garo Rogelu | 2005-04-03 |
| Series | IGPX: Immortal Grand Prix | 2005-10-05 | |
| Series | Noein: To Your Other Self | Unknown | 2005-10-12 |
| Movie | What the #$*! Do We (K)now!? | Voice Over Talent (voice) | 2004-04-23 |
| Series | Wolf's Rain | Unknown | 2003-01-07 |
| Series | Immortal Grand Prix | 2003-09-15 | |
| Series | Tenchi Muyo! GXP | 2002-04-03 | |
| Series | The Twelve Kingdoms | 2002-04-09 | |
| Movie | Armitage: Dual Matrix | Richard Mischook (voice) | 2002-03-22 |
| Series | Naruto | Kisame Hoshigaki (voice) | 2002-10-03 |
| Series | Witch Hunter Robin | Unknown | 2002-07-03 |
| Series | I'll/CKBC | 2002-12-18 | |
| Series | Ghost in the Shell: Stand Alone Complex | Unknown | 2002-10-01 |
| Series | Mon Colle Knights | 2000-01-10 | |
| Movie | Digimon: The Movie | Gabumon / MetalGarurumon / Omnimon (Shared) (voice) | 2000-10-06 |
| Movie | Cardcaptor Sakura: The Sealed Card | Toya Kinomoto (voice) | 2000-07-15 |
| Movie | Gundress | Hassan/Kazama (voice) | 1999-03-20 |
| Series | Arc the Lad | 1999-04-05 | |
| Movie | Mobile Suit Gundam: The 08th MS Team - Miller's Report | Dell (voice) | 1998-08-01 |
| Movie | Black Jack: The Movie | Black Jack (voice) | 1996-11-29 |
| Movie | Armitage III: Poly Matrix | Doctor (voice) | 1996-06-25 |
| Series | Street Fighter II: V | 1995-04-10 | |
| Series | Fushigi Yugi: The Mysterious Play | 1995-04-06 | |
| Series | Masked Rider | Unknown | 1995-09-17 |
| Movie | Street Fighter II: The Animated Movie | Guile (voice) | 1994-08-06 |
| Movie | The Heroic Trio | (voice) | 1993-02-12 |
| Movie | Ninja Scroll | Hanza (voice) | 1993-06-05 |
| Movie | Twin Dragons | Boss Wing (voice) | 1992-01-15 |
| Movie | 8 Man - For All Lonely Nights | (english version)(voice) | 1992-06-04 |
| Series | Sisters | Unknown | 1991-05-11 |
| Series | Beverly Hills, 90210 | Unknown | 1990-10-04 |
| Movie | The Revenge of Al Capone | Reporter | 1989-02-26 |
| Movie | Mobile Suit Gundam 0080: War in the Pocket | Additional Voices (voice) | 1989-03-25 |
| Movie | Akira | Additional Voices (voice: Pioneer redub) | 1988-06-10 |
| Movie | Armour of God | Additional Voices (voice) | 1986-08-16 |
| Series | Murder, She Wrote | Unknown | 1984-09-30 |
| Series | Hunter | Unknown | 1984-09-18 |
| Series | Highway to Heaven | Unknown | 1984-09-19 |
| Series | Columbo | Unknown | 1971-09-15 |
| Series | Cyborg 009 | 1968-04-05 |