Tom Sturridge
Carl

Philip Seymour Hoffman
The Count

Rhys Ifans
Gavin

Bill Nighy
Quentin

Emma Thompson
Charlotte

Nick Frost
Dave

Kenneth Branagh
Dormandy

January Jones
Eleonore

Gemma Arterton
Desiree

Jack Davenport
Twatt

Rhys Darby
Angus

Chris O'Dowd
Simon

Katherine Parkinson
Felicity

Katie Lyons
Angus' Boat Girl

Tom Wisdom
Mark

Will Adamsdale
News John

Tom Brooke
Thick Kevin

Ralph Brown
Bob

Sinead Matthews
Miss C

Talulah Riley
Marianne

Michael Hadley
Mr. Roberts

Charlie Rowe
James

Lucy Fleming
Mrs. Roberts

Ian Mercer
Transfer Boatman

Francesca Longrigg
Mrs. Dormandy

Poppy Delevingne
Model

David Sterne
Marianne's Captain

Olivia Llewellyn
Margaret

Chrissie Wunna
Model (uncredited)

Stephen Moore
Prime Minister