Liam O'Brien
Known for
Episode after episode, Liam O'Brien has become a familiar American actor comfortable in the long shape of a series. Most of the work has been in animation. The career runs to 18 years so far. His run in 'The Legend of Vox Machina' lasted 48 episodes as Vax'ildan. 'Star Wars: The Bad Batch' counts among the other credits.
Liam O'Brien
14 Movies
25 Series
Episode after episode, Liam O'Brien has become a familiar American actor comfortable in the long shape of a series. Most of the work has been in animation. The career runs to 18 years so far. His run in 'The Legend of Vox Machina' lasted 48 episodes as Vax'ildan. 'Star Wars: The Bad Batch' counts among the other credits.
Movies
Plays Red Skull / Hydra Goon 2 (voice)
LEGO Marvel Avengers: Code Red
2023
Plays The Red Skull (voice)
Iron Man & Captain America: Heroes United
2014
Plays Hiroim (voice)
Planet Hulk
2010
Plays Aquaman / Batwing Computer (voice)
JLA Adventures: Trapped in Time
2014
Plays The Red Skull (voice)
Iron Man & Hulk: Heroes United
2013
Plays Orym, of the Air Ashari
Critical Role Live: Oaths & Ash
2025
Plays Doctor Strange (voice)
Hulk: Where Monsters Dwell
2016
Plays Caleb Widogast
Critical Role Live: Jester and Fjord's Wedding
2025
Plays Doctor Strange (voice)
LEGO Marvel Super Heroes: Black Panther - Trouble in Wakanda
2018
Plays Professor Maelstrom / Diplomat / Guard 2 (voice)
Carmen Sandiego: To Steal or Not to Steal
2020
Plays Jacob Reynolds
The Phoenix Incident
2015
TV Shows
Creator
Plays Orym, of the Air Ashari
Critical Role
2015
Plays Orym, of the Air Ashari
Critical Role Abridged
2024
Writer
Plays Vax'ildan (voice)
The Legend of Vox Machina
2022
Plays Professor Maelstrom / Vlad / Boris / Others (voice)
Carmen Sandiego
2019
Plays Kurt Wagner (voice)
Wolverine and the X-Men
2009
Plays (voice)
Descendants of Darkness
2000
Plays Orym, of the Air Ashari
Exandria Unlimited
2021
Plays Caleb Widowgast (voice)
Crit Recap Animated
2020
Plays Xarlo Grandall
Daggerheart
2024
Producer
Plays Caleb (voice)
The Mighty Nein
2025
Plays Skreev
Age of Umbra
2025
Plays Emmett Markham
Sagas of Sundry
2017
Plays Bolo / Tactical Droid (voice)
Star Wars: The Bad Batch
2021
Plays Cosmo Grimm
Candela Obscura
2023
Plays Walden Orlock
MOONWARD
2024
Plays Commander (voice)
Star Wars Rebels
2014
Plays Master Estala Maru (voice)
Star Wars: Young Jedi Adventures
2023
Plays Doctor Strange (voice)
Marvel's Avengers
2013
Plays Doctor Strange / Red Skull (voice)
LEGO Marvel Avengers: Strange Tails
2025
Plays Vax'ildan
CelebriD&D
2015
Plays Nikdo / Bandit #1 / Bandit #4 (voice)
DOTA: Dragon's Blood
2021
Plays Captain Anatoly Krimov/Red Star/German CEO (voice)
G.I. Joe: Renegades
2010
Plays Red Skull (voice)
Phineas and Ferb
2007
Plays Tango (voice)
Regular Show
2010
Plays Boswell (voice)
Sofia the First
2013
Latest Trailers
Watch Trailer
Critical Role Live: Jester and Fjord's Wedding
Full Filmography
The Mighty Nein
Caleb (voice) · 8 episodes
2025–
TV
LEGO Marvel Avengers: Strange Tails
Doctor Strange / Red Skull (voice) · 1 episode
2025–
TV
Critical Role Live: Jester and Fjord's Wedding
Caleb Widogast
2025
Film
Critical Role Live: Oaths & Ash
Orym, of the Air Ashari
2025
Film
Critical Role Live: Tag Team at the Teeth – Beyond the Shroud
Orym, of the Air Ashari
2025
Film
Critical Role Live: Tag Team at the Teeth – The Misty Ascent
Caleb Widogast
2025
Film
Age of Umbra
Skreev · 8 episodes
2025–
TV
Daggerheart
Xarlo Grandall · 9 episodes
2024–
TV
MOONWARD
Walden Orlock · 4 episodes
2024–
TV
Photos
Frequently Asked Questions
How old is Liam O'Brien and where are they from?
Liam O'Brien is 50 years old, born on May 28, 1976 in Belleville, New Jersey, USA.
What are the most famous roles of Liam O'Brien?
Liam O'Brien is best known for roles in Planet Hulk, JLA Adventures: Trapped in Time, Afro Samurai: Resurrection.
How many movies has Liam O'Brien been in?
Over a 18-year career (since 2008), Liam O'Brien has appeared in 14 movies and 25 TV shows.
What was Liam O'Brien's first movie?
The career of Liam O'Brien began with Adventures in Voice Acting (2008).
What is Liam O'Brien's most recent movie or series?
Liam O'Brien's most recent release is Tale Gate, which premiered on January 20, 2026.
What TV shows has Liam O'Brien appeared in?
On television, Liam O'Brien has appeared in Regular Show, Star Wars: The Bad Batch, Phineas and Ferb, Star Wars Rebels.
Liam O'Brien
1976-05-28 · 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]