Picture of Liam O'Brien

Liam O'Brien

Born May 28, 1976 in Belleville, New Jersey, USA

Liam Christopher O'Brien is a Los Angeles-based actor, writer and director known for his roles in animation and video games, as well as the massively popular hit show and media brand, Critical Role.

Filmography

Shows & movies
The Mighty Nein
The Mighty Nein as Caleb Widogast
1 season • 2025 • Continuing
TVT Rating
Fantasy, Animation, Adventure, Action | 45m
Age of Umbra
Age of Umbra
2 seasons • 2025 • Continuing
TVT Rating
Mini-Series, Fantasy, Drama | 3h 14m
Daggerheart
Daggerheart as Xarlo Grandall
2 seasons • 2024 • Continuing
TVT Rating
Fantasy, Adventure | 3h 30m
Critical Role Cooldown
Critical Role Cooldown as himself
3 seasons • 2024 • Continuing
TVT Rating
Fantasy, Talk Show | 14m
Candela Obscura
Candela Obscura as Game Master
4 seasons • 2023 • Continuing
TVT Rating
Horror, Fantasy | 4h 39m
LEGO Marvel Avengers: Code Red
LEGO Marvel Avengers: Code Red as Hydra Goon
2023
TVT Rating
Action, Animation, Comedy | 44m
4-Sided Dive
4-Sided Dive
1 season • 2022 • Ended
TVT Rating
Adventure, Talk Show | 1h 57m
The Legend of Vox Machina
The Legend of Vox Machina as Vax'ildan
3 seasons • 2022 • Continuing
TVT Rating
Fantasy, Comedy, Animation, Adventure, Action | 26m
Exandria Unlimited
Exandria Unlimited
4 seasons • 2021 • Continuing
TVT Rating
Mini-Series, Fantasy, Adventure | 4h 16m
Star Wars: The Bad Batch
Star Wars: The Bad Batch as Bolo
3 seasons • 2021 • Ended
TVT Rating
Science Fiction, Fantasy, Drama, Animation, Adventure | 27m
Narrative Telephone
Narrative Telephone as Liam O'Brien (V)
4 seasons • 2020 • Continuing
TVT Rating
Mini-Series, Game Show, Fantasy, Comedy, Adventure | 1h 2m
Carmen Sandiego
Carmen Sandiego as Professor Gunnar Maelstrom
4 seasons • 2019 • Ended
TVT Rating
Family, Crime, Children, Animation, Adventure | 24m
Handbooker Helper
Handbooker Helper as Actor
2 seasons • 2018 • Ended
TVT Rating
Fantasy, Adventure | 5m
Between the Sheets
Between the Sheets as Guest
3 seasons • 2018 • Ended
TVT Rating
Talk Show | 1h 38m
Sagas of Sundry
Sagas of Sundry as Emmett Markham
3 seasons • 2017 • Continuing
TVT Rating
Reality, Horror, Game Show, Fantasy, Drama | 34m
Talks Machina
Talks Machina
2 seasons • 2016 • Ended
TVT Rating
Fantasy, Comedy, Adventure, Talk Show | 1h 39m
Ginger & Snapper
Ginger & Snapper as Snapper (voice)
2016
TVT Rating
Animation, Comedy, Horror, Science Fiction | 5m
Hulk: Where Monsters Dwell
Hulk: Where Monsters Dwell as Doctor Strange (voice)
2016
TVT Rating
Action, Animation, Fantasy, Science Fiction | 1h 15m
Critical Role
Critical Role as Halandil Fang
4 seasons • 2015 • Continuing
TVT Rating
Fantasy, Adventure | 3h 46m
Critical Role One-Shots
Critical Role One-Shots as Various
1 season • 2015 • Continuing
TVT Rating
Fantasy, Adventure | 3h 27m
Everstar
Everstar as Paxley (voice)
2015
TVT Rating
Animation, Adventure, Family | 22m
CelebriD&D
CelebriD&D as Vax'ildan
1 season • 2015 • Ended
TVT Rating
Fantasy, Comedy, Adventure | 53m
The Phoenix Incident
The Phoenix Incident as Jacob Reynolds
2015
TVT Rating
Horror, Thriller, Science Fiction | 1h 21m
The Marvel Experience
The Marvel Experience as Red Skull
2014
TVT Rating
Animation, Action, Adventure | 4h
The Quiet Hour
The Quiet Hour as Blondie
2014
TVT Rating
Drama, Science Fiction, Thriller | 1h 25m
Iron Man and Captain America: Heroes United
Iron Man and Captain America: Heroes United as The Red Skull (voice)
2014
TVT Rating
Action, Adventure, Animation | 1h 10m
JLA Adventures: Trapped in Time
JLA Adventures: Trapped in Time as Aquaman (voice)
2014
TVT Rating
Family, Animation, Action, Science Fiction | 52m
Iron Man & Hulk: Heroes United
Iron Man & Hulk: Heroes United as The Red Skull (voice)
2013
TVT Rating
Action, Adventure, Animation, Family | 1h 11m
All Work No Play
All Work No Play as Liam O'Brien
4 seasons • 2012 • Ended
TVT Rating
Reality, Documentary, Comedy, Talk Show | 1h 23m
Planet Hulk
Planet Hulk as Hiroim (voice)
2010
TVT Rating
Animation, Action, Science Fiction | 1h 21m
Wolverine and the X-Men
Wolverine and the X-Men as Nightcrawler
1 season • 2009 • Ended
TVT Rating
Science Fiction, Fantasy, Drama, Animation, Adventure | 25m
Redline
Redline as Frisbee (voice)
2009
TVT Rating
Fantasy, Drama, Action, Thriller, Animation | 1h 42m
Afro Samurai: Resurrection
Afro Samurai: Resurrection as Shichogoro
2009
TVT Rating
Action, Animation | 1h 40m
Final Fantasy VII: Dirge of Cerberus
Final Fantasy VII: Dirge of Cerberus as Incidental Characters (voice)
2006
TVT Rating
Animation
The Haunted Lantern
The Haunted Lantern as Tomozo (voice)
1998
TVT Rating
Horror | 1h 36m