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Cillian O'Sullivan

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Cillian O'Sullivan

Known For

Acting

Gender

Male

Birthday

Sep 28, 1989 (37 years old)

Place of Birth

New York, USA

Biography

We don't have a biography for Cillian O'Sullivan.

Known For

The Lost Princess

6.3

The Lost Princess

Uncle Bill's Barrel

Uncle Bill's Barrel

Maze

5.9

Maze

Misty Button

5.2

Misty Button

Halo: Nightfall

6.8

Halo: Nightfall

Vikings

8.1

Vikings

In From the Cold

6.7

In From the Cold

Then You Run

5.2

Then You Run

Chicago P.D.

8.416

Chicago P.D.

The Blacklist

7.633

The Blacklist

Bull

7.1

Bull

Daredevil: Born Again

8

Daredevil: Born Again

Seacht

Seacht

Star Trek: Strange New Worlds

8

Star Trek: Strange New Worlds

The Boy That Never Was

6.1

The Boy That Never Was

Acting
2025The Lost PrincessAlec Touati
2025Daredevil: Born AgainDevlin
2024The Boy That Never WasDave Garrick
2023Then You RunOrin
2022In From the ColdChauncey
2022Star Trek: Strange New WorldsDr. Roger Korby
2019Misty ButtonJames
2017MazeBobby
2016BullNathan Alexander
2014Halo: NightfallChristian Ramsey (uncredited)
2014Chicago P.D.Shane Sullivan
2013VikingsEirik
2013The BlacklistSkip Sutherland
2008Uncle Bill's BarrelTom Lynch
2008SeachtMichael