Acting
Cillian O'Sullivan
Born 28 September 1989 · New York, USA · 37
Known for
Highlights
Vikings
2013 · Series · Eirik
Chicago P.D.
2014 · Series · Shane Sullivan
The Blacklist
2013 · Series · Skip Sutherland
Daredevil: Born Again
2025 · Series · Devlin
Star Trek: Strange New Worlds
2022 · Series · Dr. Roger Korby
FBI: Most Wanted
2020 · Series · Scot Weitzen
Filmography
Movies
4 films
The Lost Princess
2025 · Film · Alec Touati
Misty Button
2019 · Film · James
Maze
2017 · Film · Bobby
Halo: Nightfall
2014 · Film · Christian Ramsey (uncredited)
Filmography
Series
11 shows
Daredevil: Born Again
2025 · Series · Devlin
The Boy That Never Was
2024 · Series · Dave Garrick
Then You Run
2023 · Series · Orin
Star Trek: Strange New Worlds
2022 · Series · Dr. Roger Korby
In From the Cold
2022 · Series · Chauncey
FBI: Most Wanted
2020 · Series · Scot Weitzen
Bull
2016 · Series · Nathan Alexander
Chicago P.D.
2014 · Series · Shane Sullivan
The Blacklist
2013 · Series · Skip Sutherland
Vikings
2013 · Series · Eirik
6Degrees
2012 · Series · Conor Martin
