Liam O'Brien

Liam O'Brien

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]

Acting

2025

The Mighty Nein
Tv

Caleb (voice)

2025

Critical Role: The Mighty Nein (Animated Series)
Movie

Caleb Widogast

2025

LEGO Marvel Avengers: Strange Tails
Tv

Doctor Strange (voice) / Red Skull (voice)

2025

Dispatch
Tv

Kellen Sebastian / Lightningstruck

2025

Dispatch
Tv

Lightningstruck

2025

Critical Role Live: Jester and Fjord's Wedding
Movie

Caleb Widogast

2025

Critical Role Live: Oaths & Ash
Movie

Orym, of the Air Ashari

2025

Critical Role Live: Oaths & Ash
Movie

Orym, of the Air Ashari

2025

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

Orym, of the Air Ashari

2025

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

Caleb Widogast

2025

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

Caleb Widogast

2025

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

Caleb Widogast

2025

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

Caleb Widogast

2024

Daggerheart
Tv

Xarlo Grandall

2024

The Legend of Vox Machina Season 3 - Special Screening
Movie

Vax'ildan/Vorugal (voice)

2024

MOONWARD
Tv

Walden Orlock

2024

Fireside Chat
Tv

Self

2024

Critical Role Cooldown
Tv

Self

2024

Critical Role Abridged
Tv

Orym, of the Air Ashari

2023

LEGO Marvel Avengers: Code Red
Movie

Red Skull / Hydra Goon 2 (voice)

2023

Star Wars: Young Jedi Adventures
Tv

Onderrs (voice)

2023

Star Wars: Young Jedi Adventures
Tv

Master Estala Maru (voice)

2023

Adventure Never Ends: A Tabletop Saga
Movie

Self

2023

Adventure Never Ends: A Tabletop Saga
Movie

Self

2023

Adventure Never Ends: A Tabletop Saga
Movie

Self

2023

Adventure Never Ends: A Tabletop Saga
Movie

Self

2022

4-Sided Dive
Tv

Self

2022

The Legend of Vox Machina
Tv

Vax'ildan (voice)

2021

Exandria Unlimited
Tv

Orym, of the Air Ashari

2021

Exandria Unlimited
Tv

Erro Mordaurum

2021

Star Wars: The Bad Batch
Tv

Bartender Droid / Stormtrooper #1 / Stormtrooper #3 (voice)

2021

Star Wars: The Bad Batch
Tv

Bolo / Captured Falleen / Raney (voice)

2021

Star Wars: The Bad Batch
Tv

Bolo / Pyke (voice)

2021

Star Wars: The Bad Batch
Tv

Bolo (voice)

2021

Star Wars: The Bad Batch
Tv

Bolo / Scrapper (voice)

2021

Star Wars: The Bad Batch
Tv

Devaronian Captain / Pyke (voice)

2021

Star Wars: The Bad Batch
Tv

Bolo / Tactical Droid (voice)

2021

DOTA: Dragon's Blood
Tv

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

2020

Crit Recap Animated
Tv

Orym, of the Air Ashari (voice)

2020

Crit Recap Animated
Tv

Caleb Widowgast (voice)

2020

Narrative Telephone
Tv

Self

2020

Narrative Telephone
Tv

Self - Storyteller

2020

Carmen Sandiego: To Steal or Not to Steal
Movie

Professor Maelstrom / Diplomat / Guard 2 (voice)

2018

LEGO Marvel Super Heroes: Black Panther - Trouble in Wakanda
Movie

Doctor Strange (voice)

2017

Sagas of Sundry
Tv

Emmett Markham

2016

Hulk: Where Monsters Dwell
Movie

Doctor Strange (voice)

2015

CelebriD&D
Tv

Vax'ildan

2015

The Phoenix Incident
Movie

Jacob Reynolds

2015

Critical Role
Tv

Halandil "Hal" Fang

2014

Star Wars Rebels
Tv

Lt. Lyste / Morad Sumar (voice)

2014

Star Wars Rebels
Tv

Lt. Lyste / Stormtrooper Squad Leader (voice)

2014

Star Wars Rebels
Tv

Commander (voice)

2014

Star Wars Rebels
Tv

Deck Officer / Imperial Tech / Lieutenant Lyste (voice)

2014

Star Wars Rebels: Spark of Rebellion
Movie

Yogar Lyste/ Morad Sumar/ Vendor 1

2014

Iron Man & Captain America: Heroes United
Movie

The Red Skull (voice)

2014

JLA Adventures: Trapped in Time
Movie

Aquaman / Batwing Computer (voice)

2013

Iron Man & Hulk: Heroes United
Movie

The Red Skull (voice)

2013

Phineas and Ferb: Mission Marvel
Movie

Red Skull (voice)

2013

Marvel's Avengers
Tv

Red Skull / Commuter (voice)

2013

Marvel's Avengers
Tv

Red Skull (voice)

2013

Marvel's Avengers
Tv

Doctor Strange (voice)

2013

Sofia the First
Tv

Boswell (voice)

2012

Game On!
Tv

Self - Guest

2010

G.I. Joe: Renegades
Tv

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

2010

Mafia II
Movie

Brian O'Neill

2010

Planet Hulk
Movie

Hiroim (voice)

2009

Afro Samurai: Resurrection
Movie

Shichogoro (voice)

2009

Wolverine and the X-Men
Tv

Kurt Wagner (voice)

Creator

2024

Critical Role Cooldown
Tv

Creator

2018

Critical Role: The Mighty Nein
Tv

Creator

2015

Critical Role
Tv

Creator

Production

2025

The Mighty Nein
Tv

Executive Producer

2022

The Legend of Vox Machina
Tv

Executive Producer

Writing

2022

The Legend of Vox Machina
Tv

Writer

Infos

Full Name
Liam O'Brien
Gender
Male
Date of Birth
5/28/1976
Also Known As

Liam O'Brian

William Markham

Christopher Liam O'Brien

Liam Christopher O'Brien