The Lost Princess
2025 · 6.3/10
Popcorn Flick
Cillian O'Sullivan
Actor · born 28 September 1989 · New York, USA
Where to start: Halo: Nightfall (2014).
As actor 4
TV shows 12
Daredevil: Born Again
TV · 2025 · 8.2/10
Absolute Cinema
The Boy That Never Was
TV · 2024 · 6.3/10
New
Then You Run
TV · 2023 · 5.1/10
New
Star Trek: Strange New Worlds
TV · 2022 · 7.9/10
Absolute Cinema
In From the Cold
TV · 2022 · 6.6/10
Popcorn Flick
FBI: Most Wanted
TV · 2020 · 7.6/10
Worth the Hype
Bull
TV · 2016 · 7.1/10
Worth the Hype
Chicago P.D.
TV · 2014 · 8.4/10
Absolute Cinema
The Blacklist
TV · 2013 · 7.6/10
Worth the Hype
Vikings
TV · 2013 · 8.1/10
Absolute Cinema
6Degrees
TV · 2012
NewSeacht
Seacht
TV · 2008
NewFrequently asked questions
What is the best Cillian O'Sullivan movie?
By viewer score, Halo: Nightfall (2014) at 6.8/10.
What are Cillian O'Sullivan’s most popular movies?
Halo: Nightfall, Maze, The Lost Princess.
How many movies has Cillian O'Sullivan made?
4 films on TMDB, 4 as actor.