Cillian O'Sullivan
Birthplace
New York, USA

Cillian O'Sullivan

Biography for Cillian O'Sullivan is not available yet. Discover their film and television work below.

Movies

The Lost Princess
The Lost Princess
2025 ★ 6.2
Alec Touati
Misty Button
Misty Button
2019 ★ 5.2
James
Maze
Maze
2017 ★ 5.9
Bobby
Halo: Nightfall
Halo: Nightfall
2014 ★ 6.8
Christian Ramsey (uncredited)
Uncle Bill's Barrel
Uncle Bill's Barrel
2008
Tom Lynch

TV Series

Daredevil: Born Again
Daredevil: Born Again
2025 ★ 8.0
Devlin
3 Episodes
The Boy That Never Was
The Boy That Never Was
2024 ★ 6.0
Dave Garrick
3 Episodes
Then You Run
Then You Run
2023 ★ 5.6
Orin
8 Episodes
Star Trek: Strange New Worlds
Star Trek: Strange New Worlds
2022 ★ 8.0
Dr. Roger Korby
4 Episodes
In From the Cold
In From the Cold
2022 ★ 6.7
Chauncey
8 Episodes
Bull
Bull
2016 ★ 7.1
Nathan Alexander
1 Episode
Chicago P.D.
Chicago P.D.
2014 ★ 8.4
Shane Sullivan
1 Episode
The Blacklist
The Blacklist
2013 ★ 7.6
Skip Sutherland
2 Episodes
Vikings
Vikings
2013 ★ 8.1
Eirik
1 Episode
Seacht
Seacht
2008
Michael
8 Episodes