- Tamsin Greig - Sarah
- Julia Davis - Lisa Bell
- Peter Gunn - Dean Trussler
- Sarah Alexander - Madeline Goddard
- Jessica Hynes - Sarah
- James Lance - Mark
- Tom Goodman-Hill - PC David Knight
- Rebecca Front - Nicola Broadbent
- Owen Brenman - Graham Broadbent
- Tony Gardner - John
- Kathryn Drysdale - The Shoe Shop Assistant
- Bill Nighy - Will Rushmore
- Jessica Oyelowo - Emma 'The Lodger'
- Mark Heap - Graham Atkinson
- Emma Kennedy - Elaine Richards
- Emma Kennedy - WPC Jane Thaw
- Richard Lumsden - Paul
- Nina Sosanya - Cassie Pearson
- Nicola Walker - Helen Meredith
- David Tennant - Rob Harker
- Lucy Punch - Kate
- Louise Delamere - Lizzy
- Steve Oram - Sound Engineer
- Steve Oram - Policeman
- Robert Webb - Tom Wolfson
- Fenella Woolgar - Mrs. Watson
- Di Botcher - Frances Churchfield
- John Morton
- Jon Plowman
Julia Davis interpreta a Lisa Bell en la serie.
Bill Nighy interpreta a Will Rushmore en la serie.
Chris Langham interpreta a Roy Mallard en la serie.
Capítulo disponible en las siguientes plataformas:
