Omar Sy as Samuel

Gloria Colston as Gloria

Clémence Poésy as Kristin

Antoine Bertrand as Bernie

Ashley Walters as Lowell

Clémentine Célarié as Samantha

Anna Cottis as Miss Appleton

Raphael von Blumenthal as Tom

Ben Homewood as Assistant director

Alice David as Young woman at party

Mona Walravens as Young woman at party

Raquel Cassidy as Gloria's teacher

Howard Crossley as Judge

Anabel Lopez as Jenny

Cécile Cassel as Lila, stewardess

Antoine Gouy as Steward

Guillaume Bouchède as Steward

Natasha Andrews as Fake Kristin

Ginnie Watson as Fake Kristin

Ludivine de Chastenet as Fake Kristin

Georgina Leeming as Fake Kristin

Solo as Samuel's father

Noémie Kocher as Mother yacht

Bertrand Combe as Father yacht

Patrice Melennec as Security agent

Ruben Alves as Waiter at the party

Elaine Caulfield as Assistant doctor

Victor Klein as Pizza delivery man

Richard Kelly as English policeman

Christian Erickson as Tea room server

Sian Altman as English waitress pub

Laurène Doval as French waitress pub

Guillaume Mélanie as Traveler at the end of his rope

David Lowe as Traveller 'Actually'

Deepak Anand as Speaking Tube Passenger

Penelope Sharp as English mother

Martin Barrie as Funfair photographer

Richard Banks as London Taxi

Jay Benedict as Doctor

Winter Goury du Roslan as Nurse

Sienna Chamberlain as Gloria's Friend

Mathieu Oullion as DJ Manos

Joe Creaser as Passerby

Benjamin Cruickshank as Tube Passenger

Natasha Jenssen as London Tube Commuter

Swaylee Loughnane as Andrew

Bharat Mistri as London Tube Commuter

Sandeep Mohan as London Tube Commuter

Ian Sanderson as Man in fairground

Megan Sanderson as Child in fairground

Jaden Sidhu as Assistant doctor

Noël Sorrente as Omar Sy (Stand-in)

Fran Targ as Fran Targ

Rob Vowles as Lawyer

Emilie Parvillers as

Claire Ashton as Passerby (uncredited)

Shane James Bordas as Man with Newspaper (uncredited)

Germaine Braithwaite as Shoreditch Hipster (uncredited)

Taylor Elwell as School Girl (uncredited)

Karl Farrer as Shoreditch Hipster (uncredited)

Susan Fordham as Passerby (uncredited)

Kirki Gkini as Shoreditch Hipster (uncredited)

Oliver Grantley as Friend (uncredited)

Chris Groundsell as Man on Bike (uncredited)

John Heartstone as Tube Passenger (uncredited)

George Johnston as Passer-By (uncredited)

Phelim Kelly as Tube Passenger (uncredited)

Attila G. Kerekes as Shoreditch Hipster (uncredited)

Alexandra Kiss as Passerby (uncredited)

Matt Lott as Shoreditch Hipster (uncredited)

Ross McKinnon as Underground commuter (uncredited)

Abigail Millar as Kristen lookalike (uncredited)

Ashley Nelson as Extra (uncredited)

Sophie O'Reilly as Goth Girl (uncredited)

Andrew Palmer as Shoreditch Hipster (uncredited)

Gianluca Tamburella as Shoreditch Hipster (uncredited)