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Cillian O'Sullivan
Known for: Acting
No biography available.
Filmography
Series
The Blacklist
Skip Sutherland
2013
Series
Chicago P.D.
Shane Sullivan
2014
Series
Vikings
Eirik
2013
Series
Star Trek: Strange New Worlds
Dr. Roger Korby
2022
Series
Daredevil: Born Again
Devlin
2025
Series
FBI: Most Wanted
Scot Weitzen
2020
Series
Bull
Nathan Alexander
2016
Series
In From the Cold
Chauncey
2022
Film
Halo: Nightfall
Christian Ramsey (uncredited)
2014
Film
The Lost Princess
Alec Touati
2025
Series
The Boy That Never Was
Dave Garrick
2024
Series
Then You Run
Orin
2023
Series
Seacht
Michael
2008
Series
6Degrees
Conor Martin
2012
Film
Maze
Bobby
2017
Film
Misty Button
James
2019
Film
Uncle Bill's Barrel
Tom Lynch
2008