Lily James as Juliet Ashton

Jessica Brown Findlay as Elizabeth McKenna

Matthew Goode as Sidney Stark

Michiel Huisman as Dawsey Adams

Katherine Parkinson as Isola Pribby

Glen Powell as Mark Reynolds

Tom Courtenay as Eben Ramsey

Kit Connor as Eli Ramsey

Penelope Wilton as Amelia Maugery

Bronagh Gallagher as Charlotte Stimple

Bernice Stegers as Mrs. Burns

Clive Merrison as Mr. Gilbert

Nicolo Pasetti as Christian Hellmann

Florence Keen as Kit McKenna

Andy Gathergood as Eddie Meares

Tom Owen as Frank Hood

Gregory Mann as Young Eli Ramsey

Richard Derrington as Barman

Dilyana Bouklieva as Nurse

Madeleine Domries as Elegant Wife

Philip Ridout as Guernsey Star Clerk

Marek Oravec as German Officer

Jack Morris as German Soldier

Stephanie Schonfield as Audience Member #1

Pippa Rathborne as Audience Member #2

Emily Patrick as Audience Member #3

Rachal Olivant as Audience Member #4

Alexa Povah as Sidney's Secretary

Steve Morphew as Policeman

Joanna Hole as Woman at Market

Shaq Taylor as G.I