Liam O'Brien
Acting Born 1976 Belleville, New Jersey, USA
84 credits
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] Read the full biography
Most recent
Newest release first.
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Series Tale Gate
2026
as Self
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Series The Mighty Nein
2025
as Caleb (voice)
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Series LEGO Marvel Avengers: Strange Tails
2025
as Doctor Strange / Red Skull (voice)
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Critical Role Live: Jester and Fjord's Wedding
2025
as Caleb Widogast
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Critical Role Live: Oaths & Ash
2025
as Orym, of the Air Ashari
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Critical Role Live: Tag Team at the Teeth – Beyond the Shroud
2025
as Orym, of the Air Ashari
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Critical Role Live: Tag Team at the Teeth – The Misty Ascent
2025
as Caleb Widogast
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Series Age of Umbra
2025
as Skreev
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Series Weird Kids
2025
as McTuff (voice)
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Series Daggerheart
2024
as Xarlo Grandall
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Series MOONWARD
2024
as Walden Orlock
-
Series Fireside Chat
2024
as Self
Explore
Their whole filmography in search, or one year of it.
Acting
78 credits
- Series
Tale Gate
2026
as Self
- Series
Age of Umbra
2025
as Skreev
-
Critical Role Live: Jester and Fjord's Wedding
2025
as Caleb Widogast
-
Critical Role Live: Oaths & Ash
2025
as Orym, of the Air Ashari
-
Critical Role Live: Tag Team at the Teeth – Beyond the Shroud
2025
as Orym, of the Air Ashari
-
Critical Role Live: Tag Team at the Teeth – The Misty Ascent
2025
as Caleb Widogast
- Series
LEGO Marvel Avengers: Strange Tails
2025
as Doctor Strange / Red Skull (voice)
- Series
The Mighty Nein
2025
as Caleb (voice)
- Series
Weird Kids
2025
as McTuff (voice)
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Series Critical Role Abridged
2024
as Orym, of the Air Ashari
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Series Critical Role Cooldown
2024
as Self
- Series
Daggerheart
2024
as Xarlo Grandall
- Series
Fireside Chat
2024
as Self
- Series
MOONWARD
2024
as Walden Orlock
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Adventure Never Ends: A Tabletop Saga
2023
as Self
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Series Candela Obscura
2023
as Game Master
- Series
Candela Obscura
2023
as Cosmo Grimm
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LEGO Marvel Avengers: Code Red
2023
as Red Skull / Hydra Goon 2 (voice)
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Series Star Wars: Young Jedi Adventures
2023
as Onderrs (voice)
- Series
Star Wars: Young Jedi Adventures
2023
as Master Estala Maru (voice)
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Series 4-Sided Dive
2022
as Self
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Series Dirty Laundry
2022
as Self - Guest
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Series The Legend of Vox Machina
2022
as Vax'ildan (voice)
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Series DOTA: Dragon's Blood
2021
as Nikdo / Bandit #1 / Bandit #4 (voice)
Show 54 more Acting credits Hide 54 Acting credits
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Series Exandria Unlimited
2021
as Erro Mordaurum
- Series
Exandria Unlimited
2021
as Orym, of the Air Ashari
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Series Star Wars: The Bad Batch
2021
as Bolo / Tactical Droid (voice)
- Series
Star Wars: The Bad Batch
2021
as Bolo / Captured Falleen / Raney (voice)
- Series
Star Wars: The Bad Batch
2021
as Bolo / Scrapper (voice)
- Series
Star Wars: The Bad Batch
2021
as Bolo (voice)
- Series
Star Wars: The Bad Batch
2021
as Bolo / Pyke (voice)
- Series
Star Wars: The Bad Batch
2021
as Bartender Droid / Stormtrooper #1 / Stormtrooper #3 (voice)
- Series
Star Wars: The Bad Batch
2021
as Devaronian Captain / Pyke (voice)
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Carmen Sandiego: To Steal or Not to Steal
2020
as Professor Maelstrom / Diplomat / Guard 2 (voice)
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Series Crit Recap Animated
2020
as Orym, of the Air Ashari (voice)
- Series
Crit Recap Animated
2020
as Caleb Widowgast (voice)
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Series Narrative Telephone
2020
as Self
- Series
Narrative Telephone
2020
as Self - Storyteller
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Series Carmen Sandiego
2019
as Professor Maelstrom / Vlad / Boris / Others (voice)
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Series All Work No Play
2018
as Self
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Series Between the Sheets
2018
as Self
- Series
Between the Sheets - Critical Role
2018
as Self
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LEGO Marvel Super Heroes: Black Panther - Trouble in Wakanda
2018
as Doctor Strange (voice)
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Series Um, Actually...
2018
as Self - Contestant
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Series Sagas of Sundry
2017
as Emmett Markham
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Ginger & Snapper
2016
as Snapper (voice)
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Hulk: Where Monsters Dwell
2016
as Doctor Strange (voice)
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Series CelebriD&D
2015
as Vax'ildan
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Series Critical Role
2015
as Orym, of the Air Ashari
- Series
Critical Role
2015
as Vax'ildan Vessar
- Series
Critical Role
2015
as Caleb Widogast
- Series
Critical Role
2015
as Halandil "Hal" Fang
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Everstar
2015
as Paxley (voice)
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The Phoenix Incident
2015
as Jacob Reynolds
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Iron Man & Captain America: Heroes United
2014
as The Red Skull (voice)
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JLA Adventures: Trapped in Time
2014
as Aquaman / Batwing Computer (voice)
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Series Star Wars Rebels
2014
as Deck Officer / Imperial Tech / Lieutenant Lyste (voice)
- Series
Star Wars Rebels
2014
as Commander (voice)
- Series
Star Wars Rebels
2014
as Lt. Lyste / Stormtrooper Squad Leader (voice)
- Series
Star Wars Rebels
2014
as Lt. Lyste / Morad Sumar (voice)
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Star Wars Rebels: Spark of Rebellion
2014
as Yogar Lyste/ Morad Sumar/ Vendor 1
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Iron Man & Hulk: Heroes United
2013
as The Red Skull (voice)
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Series Marvel's Avengers
2013
as Red Skull / Commuter (voice)
- Series
Marvel's Avengers
2013
as Red Skull (voice)
- Series
Marvel's Avengers
2013
as Doctor Strange (voice)
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Phineas and Ferb: Mission Marvel
2013
as Red Skull (voice)
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Series Sofia the First
2013
as Boswell (voice)
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Series Game On!
2012
as Self - Guest
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Series G.I. Joe: Renegades
2010
as Captain Anatoly Krimov/Red Star/German CEO (voice)
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Planet Hulk
2010
as Hiroim (voice)
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Series Regular Show
2010
as Tango (voice)
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Wolverine and the X-Men: Fate of the Future
2010
as Kurt Wagner / Nightcrawler (voice) (archive footage)
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Afro Samurai: Resurrection
2009
as Shichogoro (voice)
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Series Wolverine and the X-Men
2009
as Kurt Wagner (voice)
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Adventures in Voice Acting
2008
as Self
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Series Phineas and Ferb
2007
as Red Skull (voice)
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Series Descendants of Darkness
2000
as (voice)
- Series
The Dragon King
Creator
3 credits
- Series
Critical Role Cooldown
2024
Creator
- Series
All Work No Play
2018
Creator
- Series
Critical Role
2015
Creator
Production
2 credits
- Series
The Mighty Nein
2025
Executive Producer
- Series
The Legend of Vox Machina
2022
Executive Producer
Writing
1 credit