James McAvoy
Robbie Turner

Keira Knightley
Cecilia Tallis

Saoirse Ronan
Briony Tallis (Age 13)

Romola Garai
Briony Tallis (Age 18)

Vanessa Redgrave
Briony Tallis (Age 77)

Brenda Blethyn
Grace Turner

Juno Temple
Lola Quincey

Benedict Cumberbatch
Paul Marshall

Harriet Walter
Emily Tallis

Alfie Allen
Danny Hardman

Jérémie Renier
Luc Cornet

Anthony Minghella
Interviewer

Tobias Menzies
Naval Officer

Peter Wight
Police Inspector

Gina McKee
Sister Drummond

Tilly Vosburgh
Mother of Evacuees

John Normington
Vicar

Patrick Kennedy
Leon Tallis

Daniel Mays
Tommy Nettle

Nonso Anozie
Frank Mace

Michelle Duncan
Fiona Maguire

Michel Vuillermoz
Frenchman

Lionel Abelanski
Frenchman

Roger Evans
Beach Soldier

Bronson Webb
Beach Soldier

Ian Bonar
Beach Soldier

Jamie Beamish
Soldier in Bray Bar

Johnny Harris
Soldier in Bray Bar

Billy Seymour
Soldier in Bray Bar

Neil Maskell
Soldier in Bray Bar

Vivienne Gibbs
Staff Nurse

Alice Orr-Ewing
Probationary Nurse

Katy Lawrence
Probationary Nurse

Wendy Nottingham
Mrs. Jarvis

Leander Deeny
Police Constable

Mark Holgate
Soldier at Hospital Entrance

Romola Garai
Briony, 18

Elliott Francis
Soldier (uncredited)

Craig Douglas
Soldier (uncredited)