Rachel Weisz
Short Sighted Woman
Olivia Colman
Hotel Manager
Michael Smiley
Loner Swimmer
John C. Reilly
Lisping Man
Angeliki Papoulia
Heartless Woman
Jessica Barden
Nosebleed Woman
Emma O'Shea
Nosebleed Woman's Best Friend
Ashley Jensen
Biscuit Woman
Roger Ashton-Griffiths
Doctor
Anthony Dougall
70 Year Old Waiter
Anthony Moriarty
30 Year Old Waiter
Roland Ferrandi
Loner Leader's Father
Imelda Nagle Ryan
Loner Leader's Mother
Jacqueline Abrahams
Donkey Shooter
Robert Heaney
Restaurant Waiter
Rosanna Hoult
David's Wife
Kathy Kelly
Police Officer 1
Kevin McCormack
Police Officer 2
Nancy Onu
Hotel Receptionist
Ewen MacIntosh
Trainer Waiter (Shooting Range)
Patrick Malone
Campari Man
Sandra Hayden Mason
Arrested Town Woman
Garry Mountaine
Hotel Manager's Partner
Laoise Murphy
New Daughter
Ishmael Moalosi
Bandaged Loner
Matthew O'Brien
Trapped Loner
Judi King Murphy
Guest Room 104
Chris Threader
Coach Driver Waiter
Cian Boylan
Piano Player (uncredited)
Clive Dev
Hotel Guest (uncredited)
Degnan Geraghty
Waiter (uncredited)
Heidi Ellen Love
Waitress (uncredited)
Dolores Marren
Waitress (uncredited)
Mark McCormack
Waiter (uncredited)
Stephen Ryan
Hotel Guest (uncredited)