Liam O’Brien
Acting

Liam O’Brien

May 28, 1976 (49 years old) Belleville, New Jersey, USA

Also known as: Liam O'Brian, William Markham, Christopher Liam O'Brien, Liam Christopher 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

Regular Show

2010 • TV

Phineas and Ferb

Phineas and Ferb

2007 • TV

Critical Role

Critical Role

2015 • TV

Critical Role

Critical Role

2015 • TV

Planet Hulk

Planet Hulk

2010 • Movie

Afro Samurai: Resurrection

Afro Samurai: Resurrection

2009 • Movie

Movie Credits (22)

Acting

2010

Planet Hulk

as Hiroim (voice)

2009

Afro Samurai: Resurrection

as Shichogoro (voice)

2023

LEGO Marvel Avengers: Code Red

as Red Skull / Hydra Goon 2 (voice)

2013

Phineas and Ferb: Mission Marvel

as Red Skull (voice)

2014

Iron Man & Captain America: Heroes United

as The Red Skull (voice)

2013

Iron Man & Hulk: Heroes United

as The Red Skull (voice)

2006

Brave Story

as Ishioka Young Bishop (English version, voice)

2016

Ginger & Snapper

as Snapper (voice)

2014

Star Wars Rebels: Spark of Rebellion

as Yogar Lyste/ Morad Sumar/ Vendor 1

2015

The Phoenix Incident

as Jacob Reynolds

2015

Everstar

as Paxley (voice)

2016

Hulk: Where Monsters Dwell

as Doctor Strange (voice)

2014

JLA Adventures: Trapped in Time

as Aquaman / Batwing Computer (voice)

2018

LEGO Marvel Super Heroes: Black Panther - Trouble in Wakanda

as Doctor Strange (voice)

2020

Carmen Sandiego: To Steal or Not to Steal

as Professor Maelstrom / Diplomat / Guard 2 (voice)

2010

Wolverine and the X-Men: Fate of the Future

as Kurt Wagner / Nightcrawler (voice) (archive footage)

2025

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

as Caleb Widogast

2025

Critical Role: Oaths & Ash

as Orym, of the Air Ashari

2008

Adventures in Voice Acting

as Self

2025

Critical Role: Jester and Fjord's Wedding – Live from Radio City Music Hall

as Caleb Widogast

TV Credits (57)

Acting

2010

Regular Show

as Tango (voice)

1 episodes

2007

Phineas and Ferb

as Red Skull (voice)

1 episodes

2015

Critical Role

as Vax'ildan Vessar

115 episodes

2015

Critical Role

as Orym, of the Air Ashari

121 episodes

2015

Critical Role

as Caleb Widogast

141 episodes

2015

Critical Role

as Halandil "Hal" Fang

15 episodes

2022

The Legend of Vox Machina

as Vax'ildan (voice)

36 episodes

2021

Star Wars: The Bad Batch

as Bolo / Captured Falleen / Raney (voice)

1 episodes

2021

Star Wars: The Bad Batch

as Bolo / Tactical Droid (voice)

1 episodes

2021

Star Wars: The Bad Batch

as Bolo / Scrapper (voice)

1 episodes

2021

Star Wars: The Bad Batch

as Bolo (voice)

2 episodes

2021

Star Wars: The Bad Batch

as Bolo / Pyke (voice)

1 episodes

2021

Star Wars: The Bad Batch

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

1 episodes

2021

Star Wars: The Bad Batch

as Devaronian Captain / Pyke (voice)

1 episodes

2013

Sofia the First

as Boswell (voice)

1 episodes

2014

Star Wars Rebels

as Commander (voice)

1 episodes

2014

Star Wars Rebels

as Lt. Lyste / Stormtrooper Squad Leader (voice)

1 episodes

2014

Star Wars Rebels

as Lt. Lyste / Morad Sumar (voice)

1 episodes

2014

Star Wars Rebels

as Deck Officer / Imperial Tech / Lieutenant Lyste (voice)

1 episodes

2013

Marvel's Avengers

as Red Skull / Commuter (voice)

1 episodes

Crew

2022

The Legend of Vox Machina

Executive Producer

2022

The Legend of Vox Machina

Writer

2025

The Mighty Nein

Executive Producer

2015

Critical Role

Creator

2024

Critical Role Cooldown

Creator

2018

Critical Role: The Mighty Nein

Creator

2025

The Mighty Nein

Creator

Personal Info

Known For
Acting
Gender
Male
Birthday
May 28, 1976 (49 years old)
Place of Birth
Belleville, New Jersey, USA
Popularity
1.8

Career Stats

22
Movies
57
TV Shows