Back
Liam O'Brien

Liam O'Brien

Voice Actor

Liam O'Brien is an American voice actor and Critical Role cast member best known for playing Gaara across the Naruto franchise. In the Berserk film trilogy he provides the English voices of Ubik and a torturer character.

Role: Voice Actor
Nationality: American
Years Active: 2001-present
Text Size

Berserk Role

O'Brien voices both Ubik, the sardonic Apostle who accompanies Guts' party, and a torturer character across the English dub of the Berserk: The Golden Age Arc film trilogy. Playing two very different roles in the same production is typical of how smaller dub casts get stretched across a film's full roster of characters.

Text Size

Career and Notable Roles

O'Brien's career runs across anime, video games, and tabletop-inspired media, including Gaara throughout the Naruto franchise, Kenzo Tenma in Monster, and Jushiro Ukitake in Bleach, alongside major video game roles like Gollum in the Middle-earth: Shadow of Mordor games and Illidan Stormrage in the World of Warcraft games. He is also known as a mainstay of the Dungeons & Dragons livestream Critical Role, and works as an ADR writer and voice director.

Share this resource

Frequently Asked Questions

What characters has Liam O'Brien voiced?

Liam O'Brien's roles include Gaara across the Naruto franchise, Kenzo Tenma in Monster, and Jushiro Ukitake in Bleach. His video game work includes Gollum in the Middle-earth: Shadow of Mordor games and Illidan Stormrage in the World of Warcraft games.

What is Liam O'Brien best known for?

O'Brien is perhaps best known for voicing Gaara throughout the Naruto franchise. He's also a mainstay of the Dungeons & Dragons livestream Critical Role, where he has been a longtime cast member.

Who does Liam O'Brien voice in Berserk?

In the English dub of the Berserk: The Golden Age Arc film trilogy, Liam O'Brien voices both Ubik, the sardonic Apostle who travels with Guts' party, and a torturer character. Playing two different roles in the same production reflects how smaller dub casts often get stretched across a film's full roster of characters.

Does Liam O'Brien work behind the scenes on dubs too?

Beyond performing, O'Brien works as an ADR writer and voice director for anime and game dubs. That side of his career runs alongside decades of on-screen and on-mic acting work.

When did Liam O'Brien start his voice acting career?

Liam O'Brien, born in 1976, has been active as a voice actor since 2001. He is American, and his career spans anime, video games, and tabletop-inspired media.

Sources & Information

This content is original writing by Daddy Jim Headquarters based on the Berserk anime series, manga, and official materials. Berserk was created by Kentaro Miura, published by Hakusensha, and animated by OLM. All rights to Berserk and its characters belong to their respective owners. Episode and chapter references are cited where applicable.

Rights holders

All rights belong to their respective owners.

Character and scene imagery on this site is original artwork by Daddy Jim Headquarters, not screenshots or licensed imagery. Official cover art is used on three types of pages for editorial commentary:

  • Movie pages: theatrical posters and key visuals, credited to OLM and Hakusensha.
  • Game pages: official box art, credited to the game's respective publishers.
  • Manga chapter pages: volume covers, credited to Hakusensha and Kentaro Miura.

Help Us Keep This Wiki Accurate

Daddy Jim Headquarters maintains this encyclopedia. If you spot an error, a translation issue, or something that doesn't look right, let us know.