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Liam O'Brien

Liam O'Brien

Actor · Born May 28, 1976 · Belleville, New Jersey, USA

IMDb

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]

Acted in 44

2020s

  1. 2025

    The Mighty Nein

    Caleb (voice) · 8 episodes

    83

  2. LEGO Marvel Avengers: Strange Tails

    Doctor Strange / Red Skull (voice) · 1 episode

    62

  3. Critical Role Live: Jester and Fjord's Wedding

    Caleb Widogast

  4. Critical Role Live: Oaths & Ash

    Orym, of the Air Ashari

  5. Critical Role Live: Tag Team at the Teeth – Beyond the Shroud

    Orym, of the Air Ashari

  6. Critical Role Live: Tag Team at the Teeth – The Misty Ascent

    Caleb Widogast

  7. Age of Umbra

    Skreev · 8 episodes

  8. Weird Kids

    McTuff (voice) · 4 episodes

  9. 2024

    Daggerheart

    Xarlo Grandall · 9 episodes

  10. MOONWARD

    Walden Orlock · 4 episodes

  11. Critical Role Abridged

    Orym, of the Air Ashari · 123 episodes

  12. 2023

    LEGO Marvel Avengers: Code Red

    Red Skull / Hydra Goon 2 (voice)

    58

  13. Candela Obscura

    Cosmo Grimm, Game Master · 3 episodes

  14. Star Wars: Young Jedi Adventures

    Master Estala Maru (voice), Onderrs (voice) · 2 episodes

    52
  15. 2022

    The Legend of Vox Machina

    Vax'ildan (voice) · 48 episodes

    83
  16. 2021

    Exandria Unlimited

    Orym, of the Air Ashari, Erro Mordaurum · 8 episodes

  17. Star Wars: The Bad Batch

    Bolo / Captured Falleen / Raney (voice), Bolo / Tactical Droid (voice), Bolo / Scrapper (voice), Bolo (voice), Bolo / Pyke (voice), Bartender Droid / Stormtrooper #1 / Stormtrooper #3 (voice), Devaronian Captain / Pyke (voice) · 1 episode

    79

  18. DOTA: Dragon's Blood

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

    77
  19. 2020

    Crit Recap Animated

    Caleb Widowgast (voice), Orym, of the Air Ashari (voice) · 10 episodes

  20. Carmen Sandiego: To Steal or Not to Steal

    Professor Maelstrom / Diplomat / Guard 2 (voice)

2010s

  1. 2019

    Carmen Sandiego

    Professor Maelstrom / Vlad / Boris / Others (voice) · 31 episodes

    79
  2. 2018

    LEGO Marvel Super Heroes: Black Panther - Trouble in Wakanda

    Doctor Strange (voice)

    57
  3. 2017

    Sagas of Sundry

    Emmett Markham · 8 episodes

  4. 2016

    Hulk: Where Monsters Dwell

    Doctor Strange (voice)

    57
  5. 2015

    Everstar

    Paxley (voice)

  6. CelebriD&D

    Vax'ildan · 1 episode

  7. The Phoenix Incident

    Jacob Reynolds

  8. Critical Role

    Vax'ildan Vessar, Caleb Widogast, Orym, of the Air Ashari, Halandil "Hal" Fang · 115 episodes

    88
  9. 2014

    Star Wars Rebels

    Commander (voice), Lt. Lyste / Stormtrooper Squad Leader (voice), Lt. Lyste / Morad Sumar (voice), Deck Officer / Imperial Tech / Lieutenant Lyste (voice) · 1 episode

    80

  10. Star Wars Rebels: Spark of Rebellion

    Yogar Lyste/ Morad Sumar/ Vendor 1

  11. Iron Man & Captain America: Heroes United

    The Red Skull (voice)

    58

  12. JLA Adventures: Trapped in Time

    Aquaman / Batwing Computer (voice)

    60
  13. 2013

    Iron Man & Hulk: Heroes United

    The Red Skull (voice)

    50

  14. Phineas and Ferb: Mission Marvel

    Red Skull (voice)

  15. Marvel's Avengers

    Red Skull / Commuter (voice), Doctor Strange (voice), Red Skull (voice) · 1 episode

    71

  16. Sofia the First

    Boswell (voice) · 1 episode

    70
  17. 2010

    G.I. Joe: Renegades

    Captain Anatoly Krimov/Red Star/German CEO (voice) · 1 episode

    72

  18. Regular Show

    Tango (voice) · 1 episode

    86

  19. Planet Hulk

    Hiroim (voice)

    69

  20. Wolverine and the X-Men: Fate of the Future

    Kurt Wagner / Nightcrawler (voice) (archive footage)

Created 3

2010s

  1. 2018

    All Work No Play

    Creator

  2. 2015

    Critical Role

    Creator

    88

Produced 2

Wrote 1

Appearances12

2010s

  1. 2018

    Um, Actually...

    Self - Contestant · 1 episode

  2. All Work No Play

    Self · 27 episodes

  3. Between the Sheets

    Self · 1 episode

  4. 2012

    Game On!

    Self - Guest · 1 episode

2000s

  1. 2008

    Adventures in Voice Acting

    Self