Katie plays Margaret in A24’s THE DEATH OF ROBIN HOOD which is out in cinemas now. On stage, she has just completed a run of Dennis Kelly’s one-woman show, GIRLS & BOYS, in Belfast to rave reviews -

“Such is the level of vulnerability and fortitude on show from an astonishing Katie Breen, in a performance which, when tied in with Kelly's writing and Ievers' directing, takes one-person theatre to genuinely unforeseen heights”

-Simon Fallaha

Katie has just wrapped on REWARDING for BBC, in which she plays the role of Polly, opposite Vittorio Angelone and Hannah McClean. She will also soon be seen in the role of Maia on Mammoth’s upcoming comedy feature, CHASING MILLIONS. Katie will soon begin shooting a lead role in the forthcoming short film, SEEN.

In theatre she  has worked with Decadent Theatre Company in their production of THE DEAD SCHOOL directed by Andrew Flynn, and  bilingual Irish/English play THE SHADOW OF CARMILLA/SCATH AN SUMAIRE with Thereisbear.

Katie trained in theatre at the National University of Ireland in Galway.