"N has been a day patient at north London's Dorothy Fish day hospital for 13 years - her ambition is never to leave. Then she meets glamourous new patient Poppy Shakespeare, an ad agency receptionist convinced she's not mad."
Naomie Harris
as Poppy
Anna Maxwell Martin
as N
Tessa Peake-Jones
as Rhona
Claire Benedict
as Rosetta
Adrian Scarborough
as Middle Class Michael
Cathy Murphy
as Astrid
Kolade Agboke
as Wesley
Marie Critchley
as Tina
Bruce MacLeod
as Brian the Butcher
Penny Layden
as Sue
Kerry Godliman
as Verna
Josef Altin
as Zubin
Michelle Dockery
as Dawn
Simon Kunz
as Peter Flea
Nicholas Woodeson
as Professor
Janine Birkett
as Candid
Darrell D'Silva
as Banker Bill
Gerard Fletcher
as Male Nurse
Jonathan Cullen
as Tony
Anne Hornby
as Secretary
Szilvi Naray-Davey
as Government Inspector
Charles Steel
Producer
Danny Cohen
Director of Photography
David Charap
Editor
Benjamin Ross
Director
Sarah Williams
Writer
Harry Escott
Original Music Composer
Molly Nyman
Clare Allan
Novel
Alasdair Flind
Anna Bertmark
Dialogue Editor