Actor profile

Cillian O'Sullivan

28th September 1989 New York, USA Acting

4 Movies 11 TV Shows 17 Credits

Filmography

Movies & TV Shows

The Lost Princess 16th October 2025 as Alec Touati

Misty Button 17th March 2019 as James

Maze 22nd September 2017 as Bobby

Halo: Nightfall 5th February 2014 as Christian Ramsey (uncredited)

Daredevil: Born Again 4th March 2025 as Devlin

The Boy That Never Was 1st September 2024 as Dave Garrick

Then You Run 7th July 2023 as Orin

Star Trek: Strange New Worlds 5th May 2022 as Dr. Roger Korby

In From the Cold 28th January 2022 as Chauncey

FBI: Most Wanted 7th January 2020 as Scot Weitzen

Bull 20th September 2016 as Nathan Alexander

Chicago P.D. 8th January 2014 as Shane Sullivan

The Blacklist 23rd September 2013 as Skip Sutherland

Vikings 3rd March 2013 as Eirik

6Degrees 28th February 2012 as Conor Martin