Cillian O'Sullivan — Movies & TV Free

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

Also known as: Cillian O'Suilleabhain, Cillian Ó Súilleabháin

Filmography

• The Lost Princess (2025) as Alec Touati — rated 6.3/10
• Uncle Bill's Barrel (2008) as Tom Lynch
• Maze (2017) as Bobby — rated 5.8/10
• Misty Button (2019) as James — rated 5.2/10
• Halo: Nightfall (2014) as Christian Ramsey (uncredited) — rated 6.8/10
• Vikings (2013) as Eirik — rated 8.1/10
• In From the Cold (2022) as Chauncey — rated 6.7/10
• Then You Run (2023) as Orin — rated 5.1/10
• Chicago P.D. (2014) as Shane Sullivan — rated 8.4/10
• The Blacklist (2013) as Skip Sutherland — rated 7.6/10
• Bull (2016) as Nathan Alexander — rated 7.1/10
• Daredevil: Born Again (2025) as Devlin — rated 8.2/10
• Seacht (2008) as Michael
• Star Trek: Strange New Worlds (2022) as Dr. Roger Korby — rated 7.9/10
• The Boy That Never Was (2024) as Dave Garrick — rated 6.3/10
• FBI: Most Wanted (2020) as Scot Weitzen — rated 7.6/10
• 6Degrees (2012) as Conor Martin

Watch Cillian O'Sullivan on FluxEntertainment

Watch every Cillian O'Sullivan movie and TV series free in full HD on FluxEntertainment. Browse the complete filmography, biography and highest-rated performances. Stream any title instantly with multi-language subtitles in English, Spanish, French, Arabic, Hindi and many more languages. Multiple streaming servers available for reliable playback with no sign-up required.

Cillian O'Sullivan is known for acting, born on 1989-09-28 in New York, USA. Their filmography on FluxEntertainment includes The Lost Princess, Uncle Bill's Barrel, Maze, Misty Button, Halo: Nightfall and more titles available to stream free.

Discover more about Cillian O'Sullivan and watch their best movies and TV shows on FluxEntertainment. Every title in the filmography is available to stream in HD quality with no download, no subscription and no app install needed. Whether you are a long-time fan or just discovering their work, FluxEntertainment has the complete collection ready to watch instantly in your browser.

Browse all Cillian O'Sullivan movies and TV appearances, sorted by popularity and rating. Each title includes multi-language subtitles, multiple streaming servers and full HD quality. Start watching any Cillian O'Sullivan film or series right now — completely free on FluxEntertainment.