Known For
Acting
Gender
Male
Birthday
September 28, 1989
Age
36
Place of Birth
New York, USA
Popularity
1.2
Cillian O'Sullivan
Acting
Biography
No biography available.
Also known as
Cillian O'Suilleabhain · Cillian Ó Súilleabháin
Latest News
Known For
7.6
The Blacklist
2013 · TV
8.4
Chicago P.D.
2014 · TV
8.1
Vikings
2013 · TV
7.9
Star Trek: Strange New Worlds
2022 · TV
7.6
FBI: Most Wanted
2020 · TV
7.1
Bull
2016 · TV
8.2
Daredevil: Born Again
2025 · TV
6.7
In From the Cold
2022 · TV
6.8
Halo: Nightfall
2014 · Movie
0.0
Seacht
2008 · TV
6.3
The Lost Princess
2025 · Movie
5.8
Maze
2017 · Movie
Filmography
2025
The Lost Princess
Movie · Alec Touati
6.3
2025
Daredevil: Born Again
TV · Devlin
8.2
2024
The Boy That Never Was
TV · Dave Garrick
6.3
2023
Then You Run
TV · Orin
5.1
2022
Star Trek: Strange New Worlds
TV · Dr. Roger Korby
7.9
2022
In From the Cold
TV · Chauncey
6.7
2020
FBI: Most Wanted
TV · Scot Weitzen
7.6
2019
Misty Button
Movie · James
5.2
2017
Maze
Movie · Bobby
5.8
2016
Bull
TV · Nathan Alexander
7.1
2014
Halo: Nightfall
Movie · Christian Ramsey (uncredited)
6.8
2014
Chicago P.D.
TV · Shane Sullivan
8.4
2013
The Blacklist
TV · Skip Sutherland
7.6
2013
Vikings
TV · Eirik
8.1
2012
6Degrees
TV · Conor Martin
0.0
2008
Uncle Bill's Barrel
Movie · Tom Lynch
0.0
2008
Seacht
TV · Michael
0.0