
Liam O'Brien
- Known for
- Acting
- Born
- May 28, 1976
- Birthplace
- 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]
Filmography

Critical Role Live: Jester and Fjord's Wedding 2025
as Caleb Widogast

Critical Role Live: Oaths & Ash 2025
as Orym, of the Air Ashari

Critical Role Live: Tag Team at the Teeth – Beyond the Shroud 2025
as Orym, of the Air Ashari

Critical Role Live: Tag Team at the Teeth – The Misty Ascent 2025
as Caleb Widogast

LEGO Marvel Avengers: Code Red 2023
as Red Skull / Hydra Goon 2 (voice)

Adventure Never Ends: A Tabletop Saga 2023
as Self

Carmen Sandiego: To Steal or Not to Steal 2020
as Professor Maelstrom / Diplomat / Guard 2 (voice)

LEGO Marvel Super Heroes: Black Panther - Trouble in Wakanda 2018
as Doctor Strange (voice)
- Ginger & Snapper
Ginger & Snapper 2016
as Snapper (voice)

Hulk: Where Monsters Dwell 2016
as Doctor Strange (voice)

Everstar 2015
as Paxley (voice)

The Phoenix Incident 2015
as Jacob Reynolds

Star Wars Rebels: Spark of Rebellion 2014
as Yogar Lyste/ Morad Sumar/ Vendor 1

Iron Man & Captain America: Heroes United 2014
as The Red Skull (voice)

JLA Adventures: Trapped in Time 2014
as Aquaman / Batwing Computer (voice)

Iron Man & Hulk: Heroes United 2013
as The Red Skull (voice)

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

Planet Hulk 2010
as Hiroim (voice)

Wolverine and the X-Men: Fate of the Future 2010
as Kurt Wagner / Nightcrawler (voice) (archive footage)

Afro Samurai: Resurrection 2009
as Shichogoro (voice)

Adventures in Voice Acting 2008
as Self
Credits from TMDB.