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