Brendan Gleeson as Sergeant Gerry Boyle

Don Cheadle as FBI agent Wendell Everett

Liam Cunningham as Francis Sheehy

Mark Strong as Clive Cornell

Katarina Čas as Gabriela McBride

David Wilmot as Liam O'Leary

Rory Keenan as Garda Aidan McBride

Laurence Kinlan as Photographer

Dominique McElligott as Aoife O'Carroll

Sarah Greene as Sinead Mulligan

Fionnula Flanagan as Eileen Boyle

Gary Lydon as Garda Inspector Gerry Stanton

Mícheál Óg Lane as Eugene Moloney

Mark O'Halloran as Garda No. 1

David Pearse as Bartley

Owen Sharpe as Billy Devaney

Wale Ojo as Doctor Oleyuwo

Darren Healy as Jimmy Moody

Conor Moloney as Detective

Laura Hitchings as Female Garda

Pat Shortt as Colum Hennessey