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Cillian O'Sullivan

Cillian O'Sullivan

Actor

Born September 28, 1989 in New York, USA

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Biography

Cillian O'Sullivan is an Irish actor born in New York City to Tom and Deirdre O'Sullivan and raised in County Cork, Ireland. He began performing on stage at the age of seven in theater productions around Manhattan.

After having had success in several projects in Ireland and Europe, Cillian returned to America in 2018. He now splits his time between New York and Los Angeles, and continues to work on projects that have showcased his natural talent. With an unusual ability to truly embody a character, Cillian is quickly becoming one of the most sought after performers in the industry. Also an avid animal lover, he co parents his dog "Cú" who lives with his mother in Cork.

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Filmography

Actor

30

Type

Year

A Quiet Truth Poster

A Quiet Truth Short Film2025Tommy

Daredevil: Born Again Poster

Daredevil: Born Again TV Series2025Devlin

The Lost Princess Poster

The Lost Princess Feature Film2025Alec Touati

The Boy That Never Was Poster

The Boy That Never Was TV Series2024Dave Garrick

Then You Run Poster

Then You Run TV Series2023Orin

In from the Cold Poster

In from the Cold TV Series2022Chauncey

Motions Short Film2022Garrett

FBI: Most Wanted Poster

FBI: Most Wanted TV Series2020Scot Weitzen

Lizzy on Leroy Street Poster

Lizzy on Leroy Street Short Film2019Jack

Misty Button Poster

Misty Button Feature Film2019James Sheehan

No Rest for the Weekend Poster

No Rest for the Weekend TV Series2018Self

Taken Down Poster

Taken Down TV Series2018Dunnie

Maze Feature Film2017Bobby

Bull TV Series2016Nathan Alexander

Brewbirds Short Film2015Mike

An Actor Prepares Poster

An Actor Prepares Short Film2014Billy

Chicago P.D. Poster

Chicago P.D. TV Series2014Shane Sullivan

Empire State Poster

Empire State Short Film2014Michael

Halo: Nightfall Poster

Halo: Nightfall Mini-Series2014Christian Ramsey

Thumb Wars Short Film2014Him

Respite at Christmas Poster

Respite at Christmas Short Film2013John

Scúp TV Series2013Patrick

The Blacklist Poster

The Blacklist TV Series2013Skip Sutherland

Vikings TV Series2013Eirik

6Degrees Poster

6Degrees TV Series2012Conor Martin

An Cosc Short Film2009Sean Daly

Seacht TV Series2008Micheal

Uncle Bill's Barrel Short Film2008Tom Lynch

Single-Handed Poster

Single-Handed TV Series2007Andy

The Running Mate Poster

The Running Mate Mini-Series2007Danny Flynn

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