Liam O'Brien

Acting • 81 Credits

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]

✍️ Written & Story Credits (1)

Screenplay, Novel & Story
The Legend of Vox Machina

The Legend of Vox Machina

2022 ⭐ 4.1
Writer

🎭 Acting Roles (30)

Ranked by Prestige & Popularity
Regular Show

Regular Show

2010 ⭐ 4.3
as Tango (voice)
Star Wars: The Bad Batch

Star Wars: The Bad Batch

2021 ⭐ 4.1
as Devaronian Captain / Pyke (voice)
Phineas and Ferb

Phineas and Ferb

2007 ⭐ 3.9
as Red Skull (voice)
Star Wars Rebels

Star Wars Rebels

2014 ⭐ 3.9
as Deck Officer / Imperial Tech / Lieutenant Lyste (voice)
The Legend of Vox Machina

The Legend of Vox Machina

2022 ⭐ 4.1
as Vax'ildan (voice)
Marvel's Avengers

Marvel's Avengers

2013 ⭐ 3.8
as Red Skull (voice)
Planet Hulk

Planet Hulk

2010 ⭐ 3.5
as Hiroim (voice)
Sofia the First

Sofia the First

2013 ⭐ 3.6
as Boswell (voice)
DOTA: Dragon's Blood

DOTA: Dragon's Blood

2021 ⭐ 3.9
as Nikdo / Bandit #1 / Bandit #4 (voice)
Wolverine and the X-Men

Wolverine and the X-Men

2009 ⭐ 3.8
as Kurt Wagner (voice)
JLA Adventures: Trapped in Time

JLA Adventures: Trapped in Time

2014 ⭐ 3.3
as Aquaman / Batwing Computer (voice)
Afro Samurai: Resurrection

Afro Samurai: Resurrection

2009 ⭐ 3.4
as Shichogoro (voice)
Iron Man & Hulk: Heroes United

Iron Man & Hulk: Heroes United

2013 ⭐ 3.0
as The Red Skull (voice)
Phineas and Ferb: Mission Marvel

Phineas and Ferb: Mission Marvel

2013 ⭐ 3.3
as Red Skull (voice)
Carmen Sandiego

Carmen Sandiego

2019 ⭐ 4.0
as Professor Maelstrom / Vlad / Boris / Others (voice)
Iron Man & Captain America: Heroes United

Iron Man & Captain America: Heroes United

2014 ⭐ 3.2
as The Red Skull (voice)
Star Wars Rebels: Spark of Rebellion

Star Wars Rebels: Spark of Rebellion

2014 ⭐ 3.6
as Yogar Lyste/ Morad Sumar/ Vendor 1
LEGO Marvel Avengers: Code Red

LEGO Marvel Avengers: Code Red

2023 ⭐ 3.3
as Red Skull / Hydra Goon 2 (voice)
The Mighty Nein

The Mighty Nein

2025 ⭐ 4.1
as Caleb (voice)
Hulk: Where Monsters Dwell

Hulk: Where Monsters Dwell

2016 ⭐ 3.3
as Doctor Strange (voice)
LEGO Marvel Super Heroes: Black Panther - Trouble in Wakanda

LEGO Marvel Super Heroes: Black Panther - Trouble in Wakanda

2018 ⭐ 3.0
as Doctor Strange (voice)
The Phoenix Incident

The Phoenix Incident

2015 ⭐ 2.5
as Jacob Reynolds
Carmen Sandiego: To Steal or Not to Steal

Carmen Sandiego: To Steal or Not to Steal

2020 ⭐ 3.3
as Professor Maelstrom / Diplomat / Guard 2 (voice)
Star Wars: Young Jedi Adventures

Star Wars: Young Jedi Adventures

2023 ⭐ 2.3
as Onderrs (voice)
Critical Role

Critical Role

2015 ⭐ 4.1
as Halandil "Hal" Fang
G.I. Joe: Renegades

G.I. Joe: Renegades

2010 ⭐ 3.6
as Captain Anatoly Krimov/Red Star/German CEO (voice)
LEGO Marvel Avengers: Strange Tails

LEGO Marvel Avengers: Strange Tails

2025 ⭐ 3.1
as Doctor Strange / Red Skull (voice)
Descendants of Darkness

Descendants of Darkness

2000 ⭐ 3.1
as (voice)
Dirty Laundry

Dirty Laundry

2022 ⭐ 3.7
as Self - Guest
Um, Actually...

Um, Actually...

2018 ⭐ 4.3
as Self - Contestant