| DC Super Hero Girls | 2019 | Ra's Al Ghul (Singing) | TV Show |
| Hell, California | 2019 | Abel | Short Film |
| The Disastrous Life of Saiki K.: Reawakened | 2019 | Riki Nendo | TV Show |
| Pop Team Epic | 2018 | Shogo | TV Show |
| Stream of Many Eyes | 2018 | Himself | TV Show |
| Thrashtopia | 2017 | Bunker Bot | TV Show |
| Mafia III | 2016 | Additional Voices (voice) (as Jason Miller) | Unknown |
| Detective Conan: The Darkest Nightmare | 2016 | Kazunobu Chiba (voice) (as Jason C. Miller) | Movie |
| Future Girl | 2016 | Biff | TV Show |
| World of Warcraft: Legion | 2016 | Blacksmith Kyriel (voice), High Commander Goodchilde, Thaedris Feathersong | Unknown |
| Talks Machina | 2016 | Self | TV Show |
| Lastman | 2016 | Additional Voices | TV Show |
| Mothership | 2016 | Guest | TV Show |
| Game Engine | 2016 | Self | TV Show |
| Case Closed: Episode One - The Great Detective Turned Small | 2016 | Kazunobu Chiba (voice) (as Jason C. Miller) | TV Movie |
| Muzzled the Musical | 2015 | The Tree | TV Show |
| Final Fantasy Type-0 HD | 2015 | Additional Voices (voice) (as Jason Miller) | Unknown |
| Zombie 360 | 2015 | Zombie (as Jason Miller) | Short Film |
| Horrified | 2015 | Self | TV Show |
| Critical Role | 2015 | Garthok | TV Show |
| Gangsta. | 2015 | Additional Voices | TV Show |
| House Hunting | 2015 | Guitar Man (as Jason Miller) | Short Film |
| Diablo III: Reaper of Souls | 2014 | Additional Voices (voice) (as Jason Miller) | Unknown |
| Chaotic Awesome | 2014 | | TV Show |
| Ultra Street Fighter IV | 2014 | Guy (voice) (as J.C. Miller) | Unknown |
| Aldnoah.Zero | 2014 | Mars Knight | TV Show |
| Hearthstone: Heroes of Warcraft | 2014 | Acolyte of Pain, Blood Knight, Bloodmage Thalnos, Druid of the Claw, Loot Hoarder Gnome (voice) (as Jason Miller) | Unknown |
| Smite | 2014 | Righteous Hammer Chaac (voice) (as Jason Miller), Warmaker Vulcan | Unknown |
| Nura: Rise of the Yokai Clan: Demon Capital | 2013 | Itaku (2013) (unknown episodes) | TV Show |
| Lupin III vs. Detective Conan: The Movie | 2013 | Detective Chiba (voice) | Movie |
| Attack on Titan | 2013 | Gelgar | TV Show |
| Bayonetta: Bloody Fate - Beyonetta buraddi feito | 2013 | Additional Voices (voice) (as Jason Miller) | Movie |
| Guild Wars 2 | 2012 | Ben Tenstrikes, Big Nose Ted, Seneschal Elam (voice), Stefan Baruch | Unknown |
| The Legend of Korra | 2012 | Guard #2 | TV Show |
| Wolf Children | 2012 | Radio Announcer (voice) (as J.C. Miller) | Movie |
| Diablo III | 2012 | Additional Voices (voice) (as Jason Miller) | Unknown |
| The Flog | 2012 | Himself - Guest | TV Show |
| Street Fighter X Tekken | 2012 | Guy (voice) (as J.C. Miller) | Unknown |
| Berserk: The Golden Age Arc II - The Battle for Doldrey | 2012 | Additional Voices (voice) (as Jason Miller) | Movie |
| Persona 4: The Animation | 2012 | Additional Voices | TV Show |
| Street Fighter X Tekken Vita | 2012 | Guy | TV Show |
| Lagrange: The Flower of Rin-ne | 2012 | Sota Serizawa | TV Show |
| My Gimpy Life | 2011 | Teale's Friend | TV Show |
| StarCraft II: Wings of Liberty | 2010 | Officer #2 (voice) (as Jason Miller) | Unknown |
| Fainaru fantajî XIV | 2010 | Raubahn Aldynn (voice) (as Jason Miller) | Unknown |
| Super Street Fighter IV | 2010 | Guy (voice) (as J.C. Miller) | Unknown |
| World of Warcraft: Cataclysm | 2010 | Hagrim Hopebreaker, Terrath the Steady (voice) (as Jason Miller) | Unknown |
| Resident Evil: The Darkside Chronicles | 2009 | Robert Kendo (voice) (as Jason Miller) | Unknown |
| Star Ocean: The Last Hope | 2009 | (voice) | Unknown |
| Red Carpet Report | 2009 | Self | TV Show |
| Battle Planet | 2008 | Strike Leader Jackson (as Jason Miller) | Movie |
| Batman: The Brave and the Bold | 2008 | Black Condor | TV Show |
| World of Warcraft: Wrath of the Lich King | 2008 | Commander Stoutbeard, Prince Valanar, Thalorien Dawnseeker (voice) (as Jason Miller) | Unknown |
| Everyday Joe | 2007 | Joe (as Jason Miller) | Short Film |
| The Guild | 2007 | Jason Miller | TV Show |
| Backlash | 2006 | Assassin | Movie |
| Danny Roane: First Time Director | 2006 | Charles Brown | Movie |
| Hollywood Kills | 2006 | Bartender | Movie |
| Code Geass | 2006 | Kousetsu Urabe | TV Show |
| Hellsing Ultimate | 2006 | Hellsing Member, Zombie (voice) | TV Show |
| In the Blink of an Eye | 2005 | Steve VO (as Jason Miller) | Movie |
| The Curse of El Charro | 2005 | Dancing Albino | Movie |
| Avatar: The Last Airbender | 2005 | Additional Voices | TV Show |
| Monster | 2004 | Max Steindorf | TV Show |
| Dead Leaves | 2004 | 777, Bearded Old Man (voice: English version) | Movie |
| World of Warcraft | 2004 | (voice) (as Jason Miller) | Unknown |
| Mermaid Forest | 2003 | Sakagami Islander | TV Show |
| Ghost in the Shell: Stand Alone Complex | 2002 | Mihashi (unknown episodes) | TV Show |
| Daigunder | 2002 | Additional Voices | TV Show |
| Hellsing | 2001 | Hellsing Member, Servant, Army Soldier (unknown episodes) | TV Show |
| Read or Die | 2001 | Various (voice) | TV Show |
| One Piece | 1999 | Berry Good | TV Show |
