Emilia Clarke

as Louisa 'Lou' Clark

Sam Claflin

as William 'Will' Traynor

Janet McTeer

as Camilla Traynor

Charles Dance

as Stephen Traynor

Brendan Coyle

as Bernard Clark

Jenna Coleman

as Katrina 'Treena' Clark

Matthew Lewis

as Patrick

Samantha Spiro

as Josie Clark