Personal Info

Known For

Acting

Known Credits

15

Gender

Male

Birthday

null (NaN years old)

Place of Birth

-

Also Known As

Cillian O'Suilleabhain

Cillian Ó Súilleabháin

Cillian O'Sullivan

Biography

Known For

Acting

The Lost Princess

2025

The Lost Princess

as

Alec Touati

Uncle Bill's Barrel

2008

Uncle Bill's Barrel

as

Tom Lynch

Maze

2017

Maze

as

Bobby

2019

Misty Button

as

James

Halo: Nightfall

2014

Halo: Nightfall

as

Christian Ramsey (uncredited)

Blue Moon

2025

Blue Moon

as

Vikings

Vikings

as

Eirik

In From the Cold

In From the Cold

as

Chauncey

Then You Run

Then You Run

as

Orin

Chicago P.D.

Chicago P.D.

as

Shane Sullivan

The Blacklist

The Blacklist

as

Skip Sutherland

Bull

Bull

as

Nathan Alexander

The Boy That Never Was

The Boy That Never Was

as

Dave Carrick

Daredevil: Born Again

Daredevil: Born Again

as

Devlin

Seacht

Seacht

as

Michael

Production

Crew

Directing