Jack has finally managed to propose to his infertile girlfriend when his life is turned upside down by the arrival of an old one-night stand that introduces him to his seven year old son.
| Actor | Role |
|---|---|
 Anna FrielAnna | Anna |
 Romola GaraiCamilla | Camilla |
 Andrew BuchanJack | Jack |
 Isaac AndrewsPhoenix | Phoenix |
 Phil DavisPeter | Peter |
 Hattie MorahanLucy | Lucy |
 Harry Hadden-PatonBarry | Barry |
 Steven CreePaul | Paul |
 Julia DeakinMrs Haughton | Mrs Haughton |