Keira Knightley as Laura 'Lo' Blacklock

Guy Pearce as Richard Bullmer

David Ajala as Ben Morgan

Gitte Witt as Carrie

Art Malik as Dr. Robert Mehta

Gugu Mbatha-Raw as Rowan

Hannah Waddingham as Heidi Heatherley

Kaya Scodelario as Grace Phillips

David Morrissey as Thomas Heatherley

Daniel Ings as Adam Sutherland

Christopher Rygh as Lars Jensen

Pippa Bennett-Warner as Karla

John Macmillan as Captain Addis

Paul Kaye as Danny Tyler

Amanda Collin as Sigrid Nilssen

Lisa Loven Kongsli as Anne Bullmer

Charles Craddock as First Officer Hewitt

Ayọ̀ Owóyẹmi-Peters as Izzy

Síofra Ní Éilí as Orla

Holly Godliman as Eva

Kasper Hilton-Hille as Will

Chengxi Fu as Malcolm

Antonia Ganeva as Elena

Ingar Helge Gimle as Lyngstad Family Lawyer

Jaouhar Ben Ayed as Kev

Alyth Ross as Sasha