Poppy Shakespeare
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.
| Actor | Role |
|---|---|
 Naomie HarrisPoppy | Poppy |
 Anna Maxwell MartinN | N |
 Tessa Peake-JonesRhona | Rhona |
 Claire BenedictRosetta | Rosetta |
 Adrian ScarboroughMiddle Class Michael | Middle Class Michael |
 Cathy MurphyAstrid | Astrid |
| KKolade AgbokeWesley | Wesley |
 Marie CritchleyTina | Tina |
| BBruce MacLeodBrian the Butcher | Brian the Butcher |
 Penny LaydenSue | Sue |
 Kerry GodlimanVerna | Verna |
 Josef AltinZubin | Zubin |
 Michelle DockeryDawn | Dawn |
 Simon KunzPeter Flea | Peter Flea |
 Nicholas WoodesonProfessor | Professor |
 Janine BirkettCandid | Candid |
 Darrell D'SilvaBanker Bill | Banker Bill |
 Gerard FletcherMale Nurse | Male Nurse |
 Jonathan CullenTony | Tony |
| AAnne HornbySecretary | Secretary |
| SSzilvi Naray-DaveyGovernment Inspector | Government Inspector |