Brendan Gleeson

Character: Sergeant Gerry Boyle

Don Cheadle

Character: FBI agent Wendell Everett

Liam Cunningham

Character: Francis Sheehy

Mark Strong

Character: Clive Cornell

Katarina Čas

Character: Gabriela McBride

David Wilmot

Character: Liam O'Leary

Rory Keenan

Character: Garda Aidan McBride

Laurence Kinlan

Character: Photographer

Dominique McElligott

Character: Aoife O'Carroll

Sarah Greene

Character: Sinead Mulligan

Fionnula Flanagan

Character: Eileen Boyle

Gary Lydon

Character: Garda Inspector Gerry Stanton

Mícheál Óg Lane

Character: Eugene Moloney

Mark O'Halloran

Character: Garda No. 1

David Pearse

Character: Bartley

Owen Sharpe

Character: Billy Devaney

Wale Ojo

Character: Doctor Oleyuwo

Darren Healy

Character: Jimmy Moody

Conor Moloney

Character: Detective

Laura Hitchings

Character: Female Garda

Pat Shortt

Character: Colum Hennessey