Liam O'Brien
Actor · 21 credits · 10 in highly-rated films
Best known for Planet Hulk (2010)
Frequent collaborators: Laura Bailey, Roger Craig Smith, Travis Willingham, Matthew Mercer, Ashley Johnson
Best Liam O'Brien movies by genre
Movies (21 total, ranked by score)
1Planet Hulk
2010 · ★ 7.1 (553 votes)
Science Fiction, Animation, Action
2Star Wars Rebels: Spark of Rebellion
2014 · ★ 7.3 (159 votes)
Adventure, Animation, Action
3Afro Samurai: Resurrection
2009 · ★ 6.9 (221 votes)
Animation, Action, Adventure
4LEGO Marvel Avengers: Code Red
2023 · ★ 6.5 (159 votes)
Animation, Action, Family
5Iron Man & Captain America: Heroes United
2014 · ★ 6.5 (171 votes)
Adventure, Animation, Action
6Wolverine and the X-Men: Fate of the Future
2010 · ★ 6.7 (6 votes)
Animation
7Hulk: Where Monsters Dwell
2016 · ★ 6.7 (94 votes)
Action, Animation, Fantasy
8Once Upon a Time in a Cinema
2026 · ★ 8.0 (2 votes)
Drama
9Iron Man & Hulk: Heroes United
2013 · ★ 6.0 (220 votes)
Action, Adventure, Animation
10Carmen Sandiego: To Steal or Not to Steal
2020 · ★ 6.5 (36 votes)
Animation, Adventure, Family
- 11
Ginger & Snapper
2016
Animation, Comedy, Horror
12LEGO Marvel Super Heroes: Black Panther - Trouble in Wakanda
2018 · ★ 6.0 (71 votes)
Animation, Fantasy, Family
13Local Commercial
2012
14Fatherland
2022 · ★ 10.0 (1 votes)
Drama
15Adventure Never Ends: A Tabletop Saga
2023
Documentary
16Everstar
2015 · ★ 3.0 (2 votes)
Animation
17The Quiet Hour
2016 · ★ 4.5 (40 votes)
Drama, Science Fiction, Thriller
18Critical Role Live: Oaths & Ash
2025
Fantasy
19Critical Role Live: Jester and Fjord's Wedding
2025
Fantasy
20Critical Role Live: Tag Team at the Teeth – Beyond the Shroud
2025
Fantasy
21Critical Role Live: Tag Team at the Teeth – The Misty Ascent
2025
Fantasy
Credits are ranked using the same weighted score as movie collections. Last updated Aug 29, 2026.