Acting credits
56
Established
Large and steady acting portfolio.
Actor
Liam O'Brien
Acting
Career Snapshot
ExplainedThese indicators come from TMDB. They are relative signals, not review ratings.
TMDB popularity
1.4
Low visibility
TMDB internal trend index. Higher usually means more searches and page activity now.
Movies: 20Series: 36Crew credits: 4
TMDB ID: 89966
IMDb ID: nm1240448
Known for: Acting
Born: May 28, 1976
Age: 50
Place of birth: Belleville, New Jersey, USA
Gender: Male
Adult content flag: No
Career span: 2000 - 2026
Years active: 27
Average TMDB rating: 7.08
Wikidata: Q908941
Also known as
Liam O'Brian • William Markham • Christopher Liam O'Brien • Liam Christopher O'Brien
Other jobs
Creator (2)Executive Producer (2)
Biography
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]
Movies
Movies
Movie credits linked with Liam O'Brien.
Critical Role Live: Jester and Fjord's Wedding
as Caleb Widogast
2025 Movie
Critical Role Live: Oaths & Ash
as Orym, of the Air Ashari
2025 Movie
Critical Role Live: Tag Team at the Teeth – Beyond the Shroud
as Orym, of the Air Ashari
2025 Movie
Critical Role Live: Tag Team at the Teeth – The Misty Ascent
as Caleb Widogast
2025 Movie
LEGO Marvel Avengers: Code Red
as Red Skull / Hydra Goon 2 (voice)
2023 Movie
Adventure Never Ends: A Tabletop Saga
as Self
2023 Movie
Carmen Sandiego: To Steal or Not to Steal
as Professor Maelstrom / Diplomat / Guard 2 (voice)
2020 Movie
LEGO Marvel Super Heroes: Black Panther - Trouble in Wakanda
as Doctor Strange (voice)
2018 Movie
Hulk: Where Monsters Dwell
as Doctor Strange (voice)
2016 Movie
Everstar
as Paxley (voice)
2015 Movie
The Phoenix Incident
as Jacob Reynolds
2015 Movie
Star Wars Rebels: Spark of Rebellion
as Yogar Lyste/ Morad Sumar/ Vendor 1
2014 Movie
Iron Man & Captain America: Heroes United
as The Red Skull (voice)
2014 Movie
JLA Adventures: Trapped in Time
as Aquaman / Batwing Computer (voice)
2014 Movie
Iron Man & Hulk: Heroes United
as The Red Skull (voice)
2013 Movie
Phineas and Ferb: Mission Marvel
as Red Skull (voice)
2013 Movie
Planet Hulk
as Hiroim (voice)
2010 Movie
Wolverine and the X-Men: Fate of the Future
as Kurt Wagner / Nightcrawler (voice) (archive footage)
2010 Movie
Afro Samurai: Resurrection
as Shichogoro (voice)
2009 Movie
Adventures in Voice Acting
as Self
2008 Movie
Series
Series
Series credits linked with Liam O'Brien.
Tale Gate
as Self • 2 eps
2026 Series
The Mighty Nein
as Caleb (voice) • 8 eps
2025 Series
LEGO Marvel Avengers: Strange Tails
as Doctor Strange / Red Skull (voice) • 1 eps
2025 Series
Age of Umbra
as Skreev • 8 eps
2025 Series
Weird Kids
as McTuff (voice) • 2 eps
2025 Series
Daggerheart
as Xarlo Grandall • 9 eps
2024 Series
MOONWARD
as Walden Orlock • 4 eps
2024 Series
Fireside Chat
as Self • 3 eps
2024 Series
Critical Role Cooldown
as Self • 76 eps
2024 Series
Critical Role Abridged
as Orym, of the Air Ashari • 123 eps
2024 Series
Candela Obscura
as Cosmo Grimm • 3 eps
2023 Series
Star Wars: Young Jedi Adventures
as Master Estala Maru (voice) • 2 eps
2023 Series
Dirty Laundry
as Self - Guest • 1 eps
2022 Series
4-Sided Dive
as Self • 14 eps
2022 Series
The Legend of Vox Machina
as Vax'ildan (voice) • 48 eps
2022 Series
Exandria Unlimited
as Orym, of the Air Ashari • 8 eps
2021 Series
Star Wars: The Bad Batch
as Bolo / Captured Falleen / Raney (voice) • 1 eps
2021 Series
DOTA: Dragon's Blood
as Nikdo / Bandit #1 / Bandit #4 (voice) • 1 eps
2021 Series
Crit Recap Animated
as Orym, of the Air Ashari (voice) • 1 eps
2020 Series
Narrative Telephone
as Self • 24 eps
2020 Series
Carmen Sandiego
as Professor Maelstrom / Vlad / Boris / Others (voice) • 31 eps
2019 Series
Um, Actually...
as Self - Contestant • 1 eps
2018 Series
Between the Sheets
as Self • 1 eps
2018 Series
Sagas of Sundry
as Emmett Markham • 8 eps
2017 Series