Guest appearances in the first series are made by Richard Wilson (as Peter's old university tutor in episode four), Robert Bathurst (as a cross-dressing husband in episode five), Lynsey De Paul as Sheila Larsen, who drowns in her own swimming pool, Joss Ackland (as an Auschwitz survivor in episode six), and Rory Bremner (as a vicar, also in episode six). Bremner, known more for satire than acting, has joked that he played the vicar "as" Michael Howard and Rowan Williams and that his character's name was "Jane", due to an error in the script.
Guest appearances include Richard Wilson as Peter's old university tutor in episode four, Robert Bathurst as a cross-dressing husband in episode five, Lynsey De Paul as Sheila Larsen who drowns in her pool, Joss Ackland as an Auschwitz survivor in episode six, and Rory Bremner as a vicar in episode six. Bremner, known for satire rather than acting, has joked that he played the vicar "like" Michael Howard and Rowan Williams, attributing his character's name to a script error.