Cillian O'Sullivan

Acting • Born 1989-09-28

Filmography

15 credits

The Lost Princess

Movie • 2025

Alec Touati

Uncle Bill's Barrel

Movie • 2008

Tom Lynch

Maze

Movie • 2017

Bobby

Misty Button

Movie • 2019

James

Halo: Nightfall

Movie • 2014

Christian Ramsey (uncredited)

Vikings

TV • 2013

Eirik

In From the Cold

TV • 2022

Chauncey

Then You Run

TV • 2023

Orin

Chicago P.D.

TV • 2014

Shane Sullivan

The Blacklist

TV • 2013

Skip Sutherland

Bull

TV • 2016

Nathan Alexander

Daredevil: Born Again

TV • 2025

Devlin

Seacht

TV • 2008

Michael

Star Trek: Strange New Worlds

TV • 2022

Dr. Roger Korby

The Boy That Never Was

TV • 2024

Dave Garrick