About Cillian O'Sullivan
Cillian O'Sullivan’s other television credits include Orin O'Rourke in Then You Run; Dave Carrick in The Boy That Never Was; Special Unit Agent Chauncey Lew in In From the Cold; Conor Martin in 6Degrees; Dunnie in Taken Down.
Selected screen credits
Then You RunOrin O'Rourke
The Boy That Never WasDave Carrick
In From the ColdSpecial Unit Agent Chauncey Lew
6DegreesConor Martin
Taken DownDunnie · 2018
Cillian O'Sullivan in Vikings
Part of the saga
Eirik
Cillian O'Sullivan portrays Eirik in Vikings.
Follow the character’s journey, loyalties and place in the wider saga.
Explore Eirik’s story