Andy Serkis character Dr. Adrian King
Thomas Brodie-Sangster character Donald Clarke
Michael McElhatton character James Clarke
Sharon Horgan character Renata Clarke
Aisling Loftus character Shelly
Lilly Forgách character Shrink #1
Ian Fitzgibbon character Shrink #2
Ronan Raftery character Jeff
Sean Duggan character Teacher
Enda Oates character English Teacher
Emma Eliza Regan character Morna
Jessica Schwarz character Tanya
Ben Harding character Michael
Killian Coyle character Hugo
Andrea Thompson character Sharon
Peter Sexton character Billy
Jane Brennan character Dr. Johnson
Aisling Bodkin character Joanna