Emma Appleton

as Thomasina Hanbury

Stefanie Martini

as Martha Hanbury

Rory Fleck-Byrne

as Lt. Sebastian Holloway

Aaron Monaghan

as Major. Henry Cobcroft

Theodora Brabazon Legge

as Young Thomasina Hanbury

Francesca Brabazon Legge

as Young Martha Hanbury

Eva O'Brien

as Teenage Thomasina

Chacha Seigne

as Lola Hanbury