Liam O'Brien
Acting·May 28, 1976 — 50 years old·Belleville, New Jersey, USA
Liam is an American voice actor, writer and voice director in the Los Angeles area. He has been involved in many English-language adaptations of Japanese anime, and is also a regular in numerous video games and cartoons. [wikipedia]
Known For
Regular Show
2010·8.6
Star Wars: The Bad Batch
2021·8.2
Phineas and Ferb
2007·7.9
Star Wars Rebels
2014·7.7
Marvel's Avengers
2013·7.5
The Legend of Vox Machina
2022·8.2
Planet Hulk
2010·7.1
Sofia the First
2013·7.2
DOTA: Dragon's Blood
2021·7.7
Wolverine and the X-Men
2009·7.5
JLA Adventures: Trapped in Time
2014·6.6
Afro Samurai: Resurrection
2009·6.9
Filmography · 58
—The Dragon KingTV2026Tale GateTVSelf2025The Mighty NeinTVCaleb (voice) · Executive Producer2025LEGO Marvel Avengers: Strange TailsTVDoctor Strange / Red Skull (voice)2025Critical Role Live: Jester and Fjord's WeddingCaleb Widogast2025Critical Role Live: Oaths & AshOrym, of the Air Ashari2025Critical Role Live: Tag Team at the Teeth – Beyond the ShroudOrym, of the Air Ashari2025Critical Role Live: Tag Team at the Teeth – The Misty AscentCaleb Widogast2025Age of UmbraTVSkreev2025Weird KidsTVMcTuff (voice)2024DaggerheartTVXarlo Grandall2024MOONWARDTVWalden Orlock2024Fireside ChatTVSelf2024Critical Role AbridgedTVOrym, of the Air Ashari2024Critical Role CooldownTVSelf · Creator2023LEGO Marvel Avengers: Code RedRed Skull / Hydra Goon 2 (voice)2023Candela ObscuraTVCosmo Grimm · Game Master2023Star Wars: Young Jedi AdventuresTVMaster Estala Maru (voice) · Onderrs (voice)2023Adventure Never Ends: A Tabletop SagaSelf2022Dirty LaundryTVSelf - Guest20224-Sided DiveTVSelf2022The Legend of Vox MachinaTVVax'ildan (voice) · Executive Producer · Writer2021Exandria UnlimitedTVOrym, of the Air Ashari · Erro Mordaurum2021Star Wars: The Bad BatchTVBolo / Captured Falleen / Raney (voice) · Bolo / Tactical Droid (voice) · Bolo / Scrapper (voice) · Bolo (voice) · Bolo / Pyke (voice) · Bartender Droid / Stormtrooper #1 / Stormtrooper #3 (voice) · Devaronian Captain / Pyke (voice)2021DOTA: Dragon's BloodTVNikdo / Bandit #1 / Bandit #4 (voice)2020Crit Recap AnimatedTVCaleb Widowgast (voice) · Orym, of the Air Ashari (voice)2020Narrative TelephoneTVSelf · Self - Storyteller2020Carmen Sandiego: To Steal or Not to StealProfessor Maelstrom / Diplomat / Guard 2 (voice)2019Carmen SandiegoTVProfessor Maelstrom / Vlad / Boris / Others (voice)2018Um, Actually...TVSelf - Contestant2018Between the SheetsTVSelf2018LEGO Marvel Super Heroes: Black Panther - Trouble in WakandaDoctor Strange (voice)2018Critical Role: The Mighty NeinTVCaleb Widogast · Creator2017Sagas of SundryTVEmmett Markham2016Ginger & SnapperSnapper (voice)2016Hulk: Where Monsters DwellDoctor Strange (voice)2015EverstarPaxley (voice)2015CelebriD&DTVVax'ildan2015The Phoenix IncidentJacob Reynolds2015Critical RoleTVVax'ildan Vessar · Caleb Widogast · Orym, of the Air Ashari · Halandil "Hal" Fang · Creator2014Star Wars RebelsTVCommander (voice) · Lt. Lyste / Stormtrooper Squad Leader (voice) · Lt. Lyste / Morad Sumar (voice) · Deck Officer / Imperial Tech / Lieutenant Lyste (voice)2014Star Wars Rebels: Spark of RebellionYogar Lyste/ Morad Sumar/ Vendor 12014Iron Man & Captain America: Heroes UnitedThe Red Skull (voice)2014JLA Adventures: Trapped in TimeAquaman / Batwing Computer (voice)2013Iron Man & Hulk: Heroes UnitedThe Red Skull (voice)2013Phineas and Ferb: Mission MarvelRed Skull (voice)2013Marvel's AvengersTVRed Skull / Commuter (voice) · Doctor Strange (voice) · Red Skull (voice)2013Sofia the FirstTVBoswell (voice)2012Game On!TVSelf - Guest2010G.I. Joe: RenegadesTVCaptain Anatoly Krimov/Red Star/German CEO (voice)2010Regular ShowTVTango (voice)2010Planet HulkHiroim (voice)2010Wolverine and the X-Men: Fate of the FutureKurt Wagner / Nightcrawler (voice) (archive footage)2009Afro Samurai: ResurrectionShichogoro (voice)2009Wolverine and the X-MenTVKurt Wagner (voice)2008Adventures in Voice ActingSelf2007Phineas and FerbTVRed Skull (voice)2000Descendants of DarknessTV(voice)