Liam O'Brien
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]
Known For
Regular Show
2010
Phineas and Ferb
2007
Critical Role
2015
Critical Role
2015
Critical Role
2015
Critical Role
2015
Star Wars Rebels
2014
Star Wars Rebels
2014
Star Wars Rebels
2014
Star Wars Rebels
2014
The Legend of Vox Machina
2022
Sofia the First
2013
Filmography
Regular Show
as Tango (voice) · 2010
Phineas and Ferb
as Red Skull (voice) · 2007
Critical Role
as Vax'ildan Vessar · 2015
Critical Role
as Caleb Widogast · 2015
Critical Role
as Orym, of the Air Ashari · 2015
Critical Role
as Halandil "Hal" Fang · 2015
Star Wars Rebels
as Commander (voice) · 2014
Star Wars Rebels
as Lt. Lyste / Stormtrooper Squad Leader (voice) · 2014
Star Wars Rebels
as Lt. Lyste / Morad Sumar (voice) · 2014
Star Wars Rebels
as Deck Officer / Imperial Tech / Lieutenant Lyste (voice) · 2014
The Legend of Vox Machina
as Vax'ildan (voice) · 2022
Sofia the First
as Boswell (voice) · 2013
G.I. Joe: Renegades
as Captain Anatoly Krimov/Red Star/German CEO (voice) · 2010
Star Wars: The Bad Batch
as Bolo / Captured Falleen / Raney (voice) · 2021
Star Wars: The Bad Batch
as Bolo / Tactical Droid (voice) · 2021
Star Wars: The Bad Batch
as Bolo / Scrapper (voice) · 2021
Star Wars: The Bad Batch
as Bolo (voice) · 2021
Star Wars: The Bad Batch
as Bolo / Pyke (voice) · 2021
Star Wars: The Bad Batch
as Bartender Droid / Stormtrooper #1 / Stormtrooper #3 (voice) · 2021
Star Wars: The Bad Batch
as Devaronian Captain / Pyke (voice) · 2021
Marvel's Avengers
as Red Skull / Commuter (voice) · 2013
Marvel's Avengers
as Doctor Strange (voice) · 2013
Marvel's Avengers
as Red Skull (voice) · 2013
Star Wars: Young Jedi Adventures
as Master Estala Maru (voice) · 2023
Star Wars: Young Jedi Adventures
as Onderrs (voice) · 2023
Um, Actually...
as Self - Contestant · 2018
Critical Role Cooldown
as Self · 2024
The Mighty Nein
as Caleb (voice) · 2025
Critical Role Abridged
as Orym, of the Air Ashari · 2024
Carmen Sandiego
as Professor Maelstrom / Vlad / Boris / Others (voice) · 2019
DOTA: Dragon's Blood
as Nikdo / Bandit #1 / Bandit #4 (voice) · 2021
Dirty Laundry
as Self - Guest · 2022
Narrative Telephone
as Self · 2020
Narrative Telephone
as Self - Storyteller · 2020
Fireside Chat
as Self · 2024
LEGO Marvel Avengers: Strange Tails
as Doctor Strange / Red Skull (voice) · 2025
Wolverine and the X-Men
as Kurt Wagner (voice) · 2009
Descendants of Darkness
as (voice) · 2000
4-Sided Dive
as Self · 2022
Candela Obscura
as Cosmo Grimm · 2023
Candela Obscura
as Game Master · 2023
Weird Kids
as McTuff (voice) · 2025
Planet Hulk
as Hiroim (voice) · 2010
Phineas and Ferb: Mission Marvel
as Red Skull (voice) · 2013
LEGO Marvel Avengers: Code Red
as Red Skull / Hydra Goon 2 (voice) · 2023
Exandria Unlimited
as Orym, of the Air Ashari · 2021
Exandria Unlimited
as Erro Mordaurum · 2021
Crit Recap Animated
as Caleb Widowgast (voice) · 2020
Crit Recap Animated
as Orym, of the Air Ashari (voice) · 2020
Sagas of Sundry
as Emmett Markham · 2017
Age of Umbra
as Skreev · 2025
Iron Man & Captain America: Heroes United
as The Red Skull (voice) · 2014
Iron Man & Hulk: Heroes United
as The Red Skull (voice) · 2013
JLA Adventures: Trapped in Time
as Aquaman / Batwing Computer (voice) · 2014
Hulk: Where Monsters Dwell
as Doctor Strange (voice) · 2016
Tale Gate
as Self · 2026
Afro Samurai: Resurrection
as Shichogoro (voice) · 2009
Daggerheart
as Xarlo Grandall · 2024
Between the Sheets
as Self · 2018
CelebriD&D
as Vax'ildan · 2015
Star Wars Rebels: Spark of Rebellion
as Yogar Lyste/ Morad Sumar/ Vendor 1 · 2014
LEGO Marvel Super Heroes: Black Panther - Trouble in Wakanda
as Doctor Strange (voice) · 2018
Carmen Sandiego: To Steal or Not to Steal
as Professor Maelstrom / Diplomat / Guard 2 (voice) · 2020
Between the Sheets - Critical Role
as Self · 2018
Game On!
as Self - Guest · 2012
MOONWARD
as Walden Orlock · 2024
Critical Role Live: Oaths & Ash
as Orym, of the Air Ashari · 2025
The Phoenix Incident
as Jacob Reynolds · 2015
The Dragon King
Critical Role Live: Jester and Fjord's Wedding
as Caleb Widogast · 2025
Wolverine and the X-Men: Fate of the Future
as Kurt Wagner / Nightcrawler (voice) (archive footage) · 2010
Ginger & Snapper
as Snapper (voice) · 2016
Critical Role Live: Tag Team at the Teeth – Beyond the Shroud
as Orym, of the Air Ashari · 2025
Critical Role Live: Tag Team at the Teeth – The Misty Ascent
as Caleb Widogast · 2025
Adventures in Voice Acting
as Self · 2008
Adventure Never Ends: A Tabletop Saga
as Self · 2023
Everstar
as Paxley (voice) · 2015