Barry Ward as James Gralton

Simone Kirby as Oonagh

Jim Norton as Father Sheridan

Andrew Scott as Father Seamus

Brían F. O'Byrne as Commander O'Keefe

Francis Magee as Mossie

Karl Geary as Seán

Shane Cullen as Guard

Sean Fox as

Sorcha Fox as Molly

Aisling Franciosi as Marie

Denise Gough as Tess

Aileen Henry as Alice

Seamus Hughes as Ruairí

Martin Lucey as Dessie

Chris MacManus as Taighe

Mikel Murfi as Tommy

Shane O'Brien as Finn

John O'Dowd as Higgins

Donal O'Kelly as Cian

Rebecca O'Mara as Mrs. O'Keefe

Seán T. Ó Meallaigh as Journalist

Stella McGirl as Stella

John Cronogue as Séamus Clarke

Michael Sheridan as Fintan

Diane Parkes as Mossie's Wife

Padraig Fallon as Roscommon IRA

Anna Crossley as Young Dancer

Róisín Judge as Young Violinist

John McCarrick as Mayor

Hugh Gallagher as Senior Guard

Colm Gormley as Guard

John Colleary as Guard

Joe Lafferty as Guard

Tom Colsh as Guard

Conor McDermottroe as Doherty

Niko El Santo Zavero as Jailer