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Liam O'Brien

Liam O'Brien is a Los Angeles-based actor, writer and director known for his roles in roleanimation and video games, as well as the massively popular hit show and media brand, Critical Role.
Critical Role has become one of the most popular storytelling and world building independent media companies in the world, and Liam plays a pivotal role within the company as a co-founder, primary cast member for the flagship show and executive producer of The Legend of Vox Machina animated series which will air exclusively on Amazon Prime Video.
As a veteran voice actor, Liam has worked on well over 400 video game and animation projects, including playing Dr. Strange in Spider-Man, Ultimate Spider-Man, Marvel Ultimate Alliance 3, Avengers Assemble, Marvel Battle Lines, Marvel vs. Capcom: Infinite and Marvel Future Avengers, Yogar Lyste, Morad Sumar and Supply Master Yogar Lyste in Star Wars: Rebels, Professor Maelstrom, Boris and Vlad in Carmen Sandiego, Gihren Zab in Mobile Suit Gundam: The Origin, Gaara in Boruto: Naruto Next Generations and Naruto: Shippûden, Knight Tex Rogers, Doctor Kessle and Ranger Simon in Fallout 76, Gollum in Middle-Earth: Shadow of War, Reverse-Flash / Brainiac 5 in Injustice 2, Nephrite in Sailor Moon Crystal, War in Darksiders I, II & III, Nightcrawler in Wolverine and the X-Men and hundreds more.
In addition to his long list of acting roles, Liam has also spent a great amount of time outside the booth, both as voice director and writer for The Last of Us, The Witness, Evolve, Shadow of Mordor, LEGO Dimensions, World of Warcraft and Resident Evil 6, among others.
Liam was named Best Male Vocal Performance in an Anime Feature Film/Special in a Supporting Role in 2014's BTVA People's Choice Voice Acting Awards for his role as Gaara in Naruto Shippûden: The Movie 3: Inheritors of the Will of Fire. He is also the recipient of a BTVA People's Choice Voice Acting Award, a BTVA Special/DVD Voice Acting Award and a BTVA Anime Dub Television/OVA Voice Acting Award.
Liam can be found on Twitter at @VoiceOfOBrien.

Known For

Credits

Cast Credits

Star Wars: Young Jedi Adventures (2023)
Starring as Master Estala Maru (3 episodes)
Starring as Pirate #2 (2 episodes)
The Legend of Vox Machina (2022)
Starring as Vax'Ildan (24 episodes)
Guest starring as Vorugal (2 episodes)
LEGO Marvel Avengers (2021)
Starring as Red Skull
Starring as Hydra Goon 2
Exandria Unlimited (2021)
Starring as Orym (8 episodes)
Guest starring as Orym (2 episodes)
Star Wars: The Bad Batch (2021)
Guest starring as Bolo (6 episodes)
Guest starring as Captured Falleen
  • Episode 1x05: Rampage (May 28, 2021)
Guest starring as Raney
  • Episode 1x05: Rampage (May 28, 2021)
Guest starring as Tactical Droid
Guest starring as Scrapper
Guest starring as Pyke (2 episodes)
Guest starring as Devaronian Captain
Guest starring as Bartender Droid
Guest starring as Stormtrooper #1
Guest starring as Stormtrooper #3
DOTA: Dragon's Blood (2021)
Guest starring as Nikdo
Guest starring as Bandit #1
Guest starring as Bandit #4
Carmen Sandiego (2019)
Guest starring as Professor Maelstrom (30 episodes)
Guest starring as Greenshirt
Guest starring as Acme Analyst (3 episodes)
Guest starring as Boris (12 episodes)
Guest starring as Teacher (3 episodes)
Guest starring as Acme Agent (6 episodes)
Guest starring as Cabbie
Guest starring as Vlad (9 episodes)
Guest starring as Art Forger
Guest starring as Driver
Guest starring as Yakuza Goon 3
Guest starring as Diplomat
Guest starring as Guard 2
Guest starring as Buyer
Guest starring as Gondolier #1
Marvel's Spider-Man (2017)
Guest starring as Dr. Strange (2 episodes)
Guest starring as Robber 2
Guest starring as Golem 2
Sagas of Sundry (2017)
Starring as Emmett Markham (6 episodes)
Critical Role (2015)
Starring as Vax'Ildan the Half-Elf Rogue (87 episodes)
Starring as Caleb Widogast, the Human Wizard (77 episodes)
Starring as Orym (25 episodes)
Guest starring as Derrig
Star Wars: Rebels (2014)
Guest starring as Commander
Guest starring as Yogar Lyste (2 episodes)
Guest starring as Lt. Lyste
Guest starring as Lieutenant Lyste
Marvel's Hulk and the Agents of S.M.A.S.H. (2013)
Guest starring as Arkon
Guest starring as Red Skull
Guest starring as Green Skull
Guest starring as Hydra Commander
Guest starring as Red Skull Dinosaur
Marvel's Avengers Assemble (2013)
Guest starring as Red Skull (21 episodes)
Guest starring as Blood Brother #2
Guest starring as Commuter
Guest starring as Tour Guide
Guest starring as Doctor Strange (6 episodes)
Guest starring as Boy #4
Guest starring as Skully
Guest starring as Skull-Net
All Work No Play (2012)
Starring as Host (36 episodes)
Marvel's Ultimate Spider-Man (2012)
Guest starring as Dr. Strange (4 episodes)
Wolverine and the X-Men (2008)
Starring as Kurt Wagner / Nightcrawler (10 episodes)
Guest starring as Nitro
Guest starring as Kurt Wagner / Nightcrawler

Crew Credits

The Legend of Vox Machina (2022)
Show crew as Executive Producer (9 episodes)
Today's FBI (1981)
Episode crew as Writer (3 episodes)
  • Episode 1x18: Tapper (Apr 26, 1982)
  • Episode 1x17: Kidnap (Apr 19, 1982)
  • Episode 1x14: Surfacing (Feb 28, 1982)
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