Liam O'Brien
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
Star Wars Rebels
2014 • as Commander (voice)
Star Wars Rebels
2014 • as Lt. Lyste / Stormtrooper Squad Leader (voice)
Star Wars Rebels
2014 • as Lt. Lyste / Morad Sumar (voice)
Star Wars Rebels
2014 • as Deck Officer / Imperial Tech / Lieutenant Lyste (voice)
Phineas and Ferb
2007 • as Red Skull (voice)
The Legend of Vox Machina
2022 • as Vax'ildan (voice)
Filmography
2025
Critical Role Live: Tag Team at the Teeth – The Misty Ascent
as Caleb Widogast / Orym
Movie - Released: 6/19/2025
Critical Role Live: Tag Team at the Teeth – Beyond the Shroud
as Caleb Widogast / Orym
Movie - Released: 6/25/2025
Critical Role Live: Indianapolis
Movie - Released: 8/5/2025
2024
2023
2022
2021
Star Wars: The Bad Batch
as Bartender Droid / Stormtrooper #1 / Stormtrooper #3 (voice)
TV - Released: 5/4/2021
2020
Carmen Sandiego: To Steal or Not to Steal
as Professor Maelstrom / Diplomat / Guard 2 (voice)
Movie - Released: 3/10/2020
2018
LEGO Marvel Super Heroes: Black Panther - Trouble in Wakanda
as Doctor Strange (voice)
Movie - Released: 6/4/2018
2017
2016
Movie
2015
2014
Star Wars Rebels: Spark of Rebellion
as Yogar Lyste/ Morad Sumar/ Vendor 1
Movie - Released: 10/3/2014
Star Wars Rebels
as Deck Officer / Imperial Tech / Lieutenant Lyste (voice)
TV - Released: 10/13/2014
2013
2010
Wolverine and the X-Men: Fate of the Future
as Kurt Wagner / Nightcrawler (voice) (archive footage)
Movie - Released: 2/1/2010
2009
2008
2007
2006
2000
1990
