Liam O'Brien

Known for

• Regular ShowTango (voice)8.6
• Star Wars: The Bad BatchBolo / Tactical Droid (voice), Bolo / Captured Falleen / Raney (voice), Bolo / Scrapper (voice), Bolo (voice), Bolo / Pyke (voice), Bartender Droid / Stormtrooper #1 / Stormtrooper #3 (voice), Devaronian Captain / Pyke (voice)8.1
• Phineas and FerbRed Skull (voice)7.9
• Star Wars RebelsCommander (voice), Lt. Lyste / Stormtrooper Squad Leader (voice), Lt. Lyste / Morad Sumar (voice), Deck Officer / Imperial Tech / Lieutenant Lyste (voice)7.7
• The Legend of Vox MachinaVax'ildan (voice), Writer8.2
• Marvel's AvengersDoctor Strange (voice), Red Skull / Commuter (voice), Red Skull (voice)7.5
• Planet HulkHiroim (voice)7.1
• Sofia the FirstBoswell (voice)7.2
• DOTA: Dragon's BloodNikdo / Bandit #1 / Bandit #4 (voice)7.7
• Wolverine and the X-MenKurt Wagner (voice)7.6
• JLA Adventures: Trapped in TimeAquaman / Batwing Computer (voice)6.6
• Afro Samurai: ResurrectionShichogoro (voice)6.9

Filmography

1. TBAThe Dragon KingSeries (1 episode)
2. 2025The Mighty NeinSeries: Caleb (voice) (8 episodes)
3. 2025LEGO Marvel Avengers: Strange TailsSeries: Doctor Strange / Red Skull (voice) (1 episode)
4. 2025Critical Role Live: Jester and Fjord's WeddingFilm: Caleb Widogast
5. 2025Critical Role Live: Oaths & AshFilm: Orym, of the Air Ashari
6. 2025Critical Role Live: Tag Team at the Teeth – Beyond the ShroudFilm: Orym, of the Air Ashari
7. 2025Critical Role Live: Tag Team at the Teeth – The Misty AscentFilm: Caleb Widogast
8. 2025Age of UmbraSeries: Skreev (8 episodes)
9. 2024DaggerheartSeries: Xarlo Grandall (9 episodes)
10. 2024MOONWARDSeries: Walden Orlock (4 episodes)
11. 2024Critical Role AbridgedSeries: Orym, of the Air Ashari (123 episodes)
12. 2023LEGO Marvel Avengers: Code RedFilm: Red Skull / Hydra Goon 2 (voice)
13. 2023Candela ObscuraSeries: Cosmo Grimm, Game Master (3 episodes)
14. 2023Star Wars: Young Jedi AdventuresSeries: Master Estala Maru (voice), Onderrs (voice) (2 episodes)
15. 2022The Legend of Vox MachinaSeries: Vax'ildan (voice), Writer (48 episodes)
16. 2021Exandria UnlimitedSeries: Orym, of the Air Ashari, Erro Mordaurum (8 episodes)
17. 2021Star Wars: The Bad BatchSeries: Bolo / Tactical Droid (voice), Bolo / Captured Falleen / Raney (voice), Bolo / Scrapper (voice), Bolo (voice), Bolo / Pyke (voice), Bartender Droid / Stormtrooper #1 / Stormtrooper #3 (voice), Devaronian Captain / Pyke (voice) (1 episode)
18. 2021DOTA: Dragon's BloodSeries: Nikdo / Bandit #1 / Bandit #4 (voice) (1 episode)
19. 2020Crit Recap AnimatedSeries: Caleb Widowgast (voice), Orym, of the Air Ashari (voice) (10 episodes)
20. 2020Carmen Sandiego: To Steal or Not to StealFilm: Professor Maelstrom / Diplomat / Guard 2 (voice)
21. 2019Carmen SandiegoSeries: Professor Maelstrom / Vlad / Boris / Others (voice) (31 episodes)
22. 2018LEGO Marvel Super Heroes: Black Panther - Trouble in WakandaFilm: Doctor Strange (voice)
23. 2017Sagas of SundrySeries: Emmett Markham (8 episodes)
24. 2016Ginger & SnapperFilm: Snapper (voice)
25. 2016Hulk: Where Monsters DwellFilm: Doctor Strange (voice)
26. 2015EverstarFilm: Paxley (voice)
27. 2015CelebriD&DSeries: Vax'ildan (1 episode)
28. 2015The Phoenix IncidentFilm: Jacob Reynolds
29. 2015Critical RoleSeries: Orym, of the Air Ashari, Vax'ildan Vessar, Caleb Widogast, Halandil "Hal" Fang, Creator (121 episodes)
30. 2014Star Wars RebelsSeries: Commander (voice), Lt. Lyste / Stormtrooper Squad Leader (voice), Lt. Lyste / Morad Sumar (voice), Deck Officer / Imperial Tech / Lieutenant Lyste (voice) (1 episode)
31. 2014Star Wars Rebels: Spark of RebellionFilm: Yogar Lyste/ Morad Sumar/ Vendor 1
32. 2014Iron Man & Captain America: Heroes UnitedFilm: The Red Skull (voice)
33. 2014JLA Adventures: Trapped in TimeFilm: Aquaman / Batwing Computer (voice)
34. 2013Iron Man & Hulk: Heroes UnitedFilm: The Red Skull (voice)
35. 2013Phineas and Ferb: Mission MarvelFilm: Red Skull (voice)
36. 2013Marvel's AvengersSeries: Doctor Strange (voice), Red Skull / Commuter (voice), Red Skull (voice) (1 episode)
37. 2013Sofia the FirstSeries: Boswell (voice) (1 episode)
38. 2010G.I. Joe: RenegadesSeries: Captain Anatoly Krimov/Red Star/German CEO (voice) (1 episode)
39. 2010Regular ShowSeries: Tango (voice) (1 episode)
40. 2010Planet HulkFilm: Hiroim (voice)
41. 2010Wolverine and the X-Men: Fate of the FutureFilm: Kurt Wagner / Nightcrawler (voice) (archive footage)
42. 2009Afro Samurai: ResurrectionFilm: Shichogoro (voice)
43. 2009Wolverine and the X-MenSeries: Kurt Wagner (voice) (26 episodes)
44. 2007Phineas and FerbSeries: Red Skull (voice) (1 episode)
45. 2000Descendants of DarknessSeries: (voice) (13 episodes)