Liam O'Brien

May 28, 1976 (49 years old) in 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

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Phineas and Ferb

Red Skull (voice)

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Regular Show

Tango (voice)

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Star Wars Rebels

Commander (voice)

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Critical Role

Vax'ildan Vessar

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Critical Role Abridged

Orym

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Star Wars: The Bad Batch

Bolo / Captured Falleen / Raney (voice)

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The Legend of Vox Machina

Vax'ildan (voice)

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Star Wars: Young Jedi Adventures

Master Estala Maru (voice)

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Marvel's Avengers

Red Skull / Commuter (voice)

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G.I. Joe: Renegades

Captain Anatoly Krimov/Red Star/German CEO (voice)

Credits

The Mighty Nein Future

(voice)

★ NR
Critical Role Live: NYC Radio City Music Hall 2025

Caleb Widogast

★ NR
Critical Role: Oaths & Ash 2025

Orym

★ NR
Critical Role Live: Tag Team at the Teeth – Beyond the Shroud 2025

Orym

★ NR
Critical Role Live: Tag Team at the Teeth – The Misty Ascent 2025

Caleb Widogast

★ NR
Age of Umbra 2025

Skreev

★ NR
Daggerheart 2024

Xarlo Grandall

★ NR
MOONWARD 2024

Walden Orlock

★ NR
Critical Role Abridged 2024

Orym

★ NR
LEGO Marvel Avengers: Code Red 2023

Red Skull / Hydra Goon 2 (voice)

★ 6.4
Candela Obscura 2023

Cosmo Grimm

★ 8
Star Wars: Young Jedi Adventures 2023

Master Estala Maru (voice)

★ 4.7
Adventure Never Ends: A Tabletop Saga 2023

Self

★ NR
The Legend of Vox Machina 2022

Vax'ildan (voice)

★ 8.2
Exandria Unlimited 2021

Orym

★ 4
Star Wars: The Bad Batch 2021

Bolo / Captured Falleen / Raney (voice)

★ 8.2
DOTA: Dragon's Blood 2021

Nikdo / Bandit #1 / Bandit #4 (voice)

★ 7.8
Crit Recap Animated 2020

Orym (voice)

★ NR
Carmen Sandiego: To Steal or Not to Steal 2020

Professor Maelstrom / Diplomat / Guard 2 (voice)

★ 6.5
Um, Actually... 2018

Self - Contestant

★ 9.5
LEGO Marvel Super Heroes: Black Panther - Trouble in Wakanda 2018

Doctor Strange (voice)

★ 6
Sagas of Sundry 2017

Emmett Markham

★ 8
Ginger & Snapper 2016

Snapper (voice)

★ NR
Hulk: Where Monsters Dwell 2016

Doctor Strange (voice)

★ 6.6
Everstar 2015

Paxley (voice)

★ 3
CelebriD&D 2015

Vax'ildan

★ 1
The Phoenix Incident 2015

Jacob Reynolds

★ 5.1
Critical Role 2015

Vax'ildan Vessar

★ 8.2
Star Wars Rebels 2014

Commander (voice)

★ 7.7
Star Wars Rebels: Spark of Rebellion 2014

Yogar Lyste/ Morad Sumar/ Vendor 1

★ 7.3
Iron Man & Captain America: Heroes United 2014

The Red Skull (voice)

★ 6.5
JLA Adventures: Trapped in Time 2014

Aquaman (voice)

★ 6.6
Iron Man & Hulk: Heroes United 2013

The Red Skull (voice)

★ 5.9
Phineas and Ferb: Mission Marvel 2013

Red Skull (voice)

★ 6.5
Marvel's Avengers 2013

Red Skull / Commuter (voice)

★ 7.6
G.I. Joe: Renegades 2010

Captain Anatoly Krimov/Red Star/German CEO (voice)

★ 7.4
Regular Show 2010

Tango (voice)

★ 8.6
Planet Hulk 2010

Hiroim (voice)

★ 7.1
Wolverine and the X-Men: Fate of the Future 2010

Kurt Wagner / Nightcrawler (voice) (archive footage)

★ 6.7
Afro Samurai: Resurrection 2009

Shichogoro (voice)

★ 6.8
Wolverine and the X-Men 2009

Kurt Wagner (voice)

★ 7.5
Adventures in Voice Acting 2008

Self

★ 10
Phineas and Ferb 2007

Red Skull (voice)

★ 7.9
Brave Story 2006

Ishioka Young Bishop (English version, voice)

★ 6.3
Descendants of Darkness 2000

(voice)

★ 6.2
The Spirit of '76 1990

Rodney Snodgrass

★ 4.6