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Known forActing
Born September 28, 1989
New York, USA
15 credits
Acting
Cillian O'Sullivan
No biography available.
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The Blacklist
2013 · ★ 7.6
Chicago P.D.
2014 · ★ 8.4
Daredevil: Born Again
2025 · ★ 8.2
Vikings
2013 · ★ 8.1
Bull
2016 · ★ 7.0
Star Trek: Strange New Worlds
2022 · ★ 8.0
In From the Cold
2022 · ★ 6.7
The Lost Princess
2025 · ★ 6.3
Halo: Nightfall
2014 · ★ 6.8
Then You Run
2023 · ★ 4.8
The Boy That Never Was
2024 · ★ 6.1
Maze
2017 · ★ 5.8
Seacht
2008 · ★ 0.0
Misty Button
2019 · ★ 5.2
Uncle Bill's Barrel
2008 · ★ 0.0