Sam Claflin Alex Stewart
Lily Collins Rosie Dunne
Suki Waterhouse Bethany Williams
Tamsin Egerton Sally
Art Parkinson Gary Dunne
Christian Cooke Greg
Jamie Beamish Phil
Jake Manley Alex's Boston Friend 1
Jaime Winstone Ruby
Lorcan Cranitch Dennis Dunne
Ger Ryan Alice Dunne
Jean Frenette Stunt Coordinator
Lily Laight Katie (12 yrs)
Lara McDonnell Rosie (10 yrs)
Christian Ditter Director
Róisín O'Donovan Midwife
Gail Stevens Casting
Martin Moszkowicz Executive Producer
Sean Condren Stunts
Joe Condren Stunt Coordinator
Marion O'Dwyer Mrs. Casey
Jonathan Hession Still Photographer
Robert Kulzer Producer
Judy Farr Set Decoration
Cecelia Ahern Novel
Tony Cranstoun Editor
Leonie Prendergast Costume Design
David Crowley Policeman Adam
Juliette Towhidi Screenplay
Ciaran McGlynn Dick
Aaron Kinsella Toby (6 yrs)
Jan Thijs Still Photographer
Jay Jay Callan Second Assistant "B" Camera
Heiko Müller Supervising Sound Editor
Ralf Wengenmayr Original Music Composer
Matthew Davies Production Design
Eimear O'Grady Stunt Double
Michael Hinreiner Sound Re-Recording Mixer
Tighe Wardell Alex (6 yrs)
Pia Hoffmann Music Supervisor
Aoife Byrne Stunt Double
Jemma Curran Rosie's friend (uncredited)
Damien Devaney Man in the Lift
Tom John Kelly Alex (10 yrs)
Fabian Jonathan Art Direction
Sadhbh Malin Clare
Christian Rein Director of Photography
Kris Edlund Airline Official
Stephen Mullan Hotel Manager
Nina Knott Visual Effects Producer
Rosa Molloy Katie (5 yrs)
Markus Eckert Steadicam Operator
Barry O'Sullivan Production Sound Mixer
Rudy Katkic Camera Operator
Mario Hubert Sound Designer
Kathleen Weir Script Supervisor
Beau Rose Garratt Rosie (6 yrs)
Emma Condren Stunts
Robbie O'Brien Stunts
Nick Lee Herb
Fiona Starogardzki First Assistant Editor
Simon Brooks Producer
Bobby Aherne Rosie's Friend
Aran Condren Stunts
Matthew Dillon Toby (12 yrs)
Max Cleary Joey Dunne
Jusin Holmes Jonathan