Michael Lennox Director Martin McCann Father Actor Charlene McKenna Mother Actor Jonathan Harden Older Jamesy Actor Riley Hamilton Jamesy Actor Paul Kennedy Paramilitary Actor Aaron Lynch Malachy Actor Ronan Blaney Screenwriter Brian J. Falconer Producer Richard Irwin Executive Producer Jered Sorkin Original Music Mark Garrett Cinematographer Lívia Serpa Film Editing Niall McEvoy Production Design