Cillian O'Sullivan

Profile

Cillian O'Sullivan

Acting
Born 1989-09-28
1
New York, USA

Filmography

15 credits across movies and TV

The Lost Princess
Movie

The Lost Princess

2025 · Alec Touati

Uncle Bill's Barrel
Movie

Uncle Bill's Barrel

2008 · Tom Lynch

Maze
Movie

Maze

2017 · Bobby

Misty Button
Movie

Misty Button

2019 · James

Halo: Nightfall
Movie

Halo: Nightfall

2014 · Christian Ramsey (uncredited)

Vikings
TV

Vikings

2013 · Eirik

In From the Cold
TV

In From the Cold

2022 · Chauncey

Then You Run
TV

Then You Run

2023 · Orin

Chicago P.D.
TV

Chicago P.D.

2014 · Shane Sullivan

The Blacklist
TV

The Blacklist

2013 · Skip Sutherland

Bull
TV

Bull

2016 · Nathan Alexander

Daredevil: Born Again
TV

Daredevil: Born Again

2025 · Devlin

Seacht
TV

Seacht

2008 · Michael

Star Trek: Strange New Worlds
TV

Star Trek: Strange New Worlds

2022 · Dr. Roger Korby

The Boy That Never Was
TV

The Boy That Never Was

2024 · Dave Garrick