Cillian O'Sullivan
Acting

Cillian O'Sullivan

Explore Cillian O'Sullivan's filmography, known works, and frequent collaborators.

ActorCast

Known for

Halo: Nightfall★ 6.9Viewing moment
Halo: Nightfall
2014
Daredevil: Born Again★ 8.2Viewing moment
Daredevil: Born Again
2025 · Series
Maze★ 5.9Viewing moment
Maze
2017
In From the Cold★ 6.7Viewing moment
In From the Cold
2022 · Series
Misty Button★ 5.2Viewing moment
Misty Button
2019
The Boy That Never Was★ 6.1Viewing moment
The Boy That Never Was
2024 · Series
Then You Run★ 4.9Viewing moment
Then You Run
2023 · Series

Frequent collaborators

Margarita LevievaMargarita LevievaElva TrillElva TrillMike ColterMike ColterMatthew LillardMatthew LillardCharlie CoxCharlie CoxFrancis MageeFrancis MageeEric RobertsEric RobertsVincent D'OnofrioVincent D'Onofrio