Shailene Woodley (Jennifer Stirling), Felicity Jones (Ellie Haworth), Callum Turner (Anthony O'Hare), Joe Alwyn (Lawrence Stirling), Nabhaan Rizwan (Rory McCallan), Ncuti Gatwa (Nick), Emma Appleton (Hannah) more..., Christian Brassington (Dominic), Alice Orr-Ewing (Yvonne), Lee Knight (Francis), Zoe Boyle (Anne), Ben Cross (Older Anthony O'Hare), Diana Kent (Older Jennifer Sterling), Wendy Nottingham (Mrs Cordoza), Jacob Fortune-Lloyd (Andrew), Jessica D'Arcy (Co-Worker), Ann Ogbomo (Janet), Rachel Atkins (Alberto's Bar Woman), Jasmine Hyde (French Housekeeper), Atheena Frizzell (Mariette), Emilio Aniba (French Waiter), Matt Mella (French Hotel Receptionist), Ricardo Gilfillan (Felipe), Joann Condon (Post Office Cashier), Jasmine Raymond (Colleague), Jennifer Aries (Post Office Staff Member), Hero Howard (Esme Sterling), Francesca Bailey (London Hotel Receptionist), David Sibley (Don Franklin), Claire Brown (Mary Ellen), Manoj Anand (Train Passenger (uncredited)), Vilhelm Blomgren (Rob (uncredited)), Eve Harding (Train Passenger (uncredited)), Joakim Skarli (Actor (uncredited)), Alfredo Tavares (Charlie (uncredited)), Jennifer Brooke (Chronicle Receptionist)

Simone Urdl (Producer), Jennifer Weiss (Producer), Graham Broadbent (Producer), Peter Czernin (Producer), Felicity Jones (Executive Producer), Shailene Woodley (Executive Producer), Jojo Moyes (Novel) more..., Melanie Oliver (Editor), Fiona Weir (Casting), Esta Spalding (Writer), Daniel Hart (Original Music Composer), Celia Duval (Co-Producer), Ron Halpern (Executive Producer), Diarmuid McKeown (Executive Producer), Stephen Traynor (Executive Producer), Nick Payne (Writer), Patrice Theroux (Executive Producer), Jojo Moyes (Executive Producer), George Steel (Director of Photography), Graham Johnston (Hair Designer), Graham Johnston (Makeup Designer), James Merifield (Production Design), Ben Howard (First Assistant Director), Ruth Coady (Executive Producer), Didier Lupfer (Executive Producer), Ben Knight (Executive Producer), Scott Eaton (Production Manager), Shana Eddy-Grouf (Executive Producer), Anna Mary Scott Robbins (Costume Designer), Aaron Hartley (Second Assistant Director), Neil Finnighan (Stunt Coordinator), Shane Steyn (Stunt Double), Zarene Dallas (Stunt Double), Benjamin Ashley (Stunt Double), Sami Fendall (Art Department Assistant),