Liam O'Brien
Liam Christopher O'Brien is an American voice actor, writer, and director. He is a regular cast member of the Dungeons & Dragons actual play series Critical Role, playing Vax'ildan ("Vax"), Caleb Widogast, Orym, and Halandil Fang. He has been involved in many video games, cartoons, and English-language adaptations of Japanese anime. His major anime roles include Gaara in Naruto, Naruto Shippuden, and Boruto, Vincent Law in Ergo Proxy, Captain Jushiro Ukitake in Bleach, Lloyd in Code Geass, Kenzo Tenma in Monster, Akihiko Sanada in Persona 3, and Nephrite in the Viz Media dub of Sailor Moon.
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🎬 Movies
Once Upon a Time in a Cinema
actor
2026
The Legend of Vox Machina Season 3 - Special Screening
actor
2024
LEGO Marvel Avengers: Code Red
actor
2023
LEGO Marvel Super Heroes: Black Panther - Trouble in Wakanda
actor
2018
Hulk: Where Monsters Dwell
actor
2016
The Phoenix Incident
actor
2015
Star Wars Rebels: Spark of Rebellion
actor
2014
Iron Man & Captain America: Heroes United
actor
2014
JLA Adventures: Trapped in Time
actor
2014
Iron Man & Hulk: Heroes United
actor
2013
Phineas and Ferb: Mission Marvel
actor
2013
Planet Hulk
actor
2010
Afro Samurai: Resurrection
actor
2009
The Devil at 4 O'Clock
writer
1961
The Great Impostor
writer
1960
Trapeze
writer
1956
Young at Heart
writer
1954
Here Comes the Groom
writer
1951
📺 TV Shows
The Mighty Nein
actor
2025
The Mighty Nein
executive_producer
2025
4-Sided Dive
actor
2022
The Legend of Vox Machina
actor
2022
The Legend of Vox Machina
executive_producer
2022
Exandria Unlimited
actor
2021
Sagas of Sundry
actor
2017
Critical Role
actor
2015
All Work No Play
actor
2012
NFL Rush Zone
actor
2010
Wolverine and the X-Men
actor
2008