- From a novel by:
- Mark Tavener
- Adapted by:
- Malcolm Bradbury
- Producer:
- Sarah Smith
- Director:
- Marcus Mortimer
- George Cragge:
- Warren Clarke
- Controller, Radio 2:
- Stephen Fry
- Geoffrey Crichton Potter:
- Richard Griffiths
- Dominic De'Ath:
- Rik Mayall
- Lord Tone:
- Richard Wilson
- Controller, BBC1:
- Keith Barron
- Controller, Radio 4:
- John Bird
- Ms Sin:
- Siobhan Redmond
- Laetitia Tone:
- Rachel Fielding
- Jemma White:
- Sally Phillips
- DCI Frank Jefferson:
- Alun Armstrong
- Hercules Fortescue:
- John Sessions
- Henry Potts:
- Simon Godley
- Beth Parsons:
- Rebecca Front
- Director general:
- Michael Wearing
- Mr Justice Frimlington:
- Geoffrey Chater
- DS Marten:
- Victoria Carling
- Bamber Simpson:
- James McCarthy
- Max Parker:
- David Ryall
- Andrew James:
- Patrick O'Kane
- Conference chairman:
- Ian Ashpitel
- Lawrence Boot-Heath:
- Steve Pemberton
- Sir Carstairs De'Ath:
- David Mallinson
- Assistant to director general:
- Georgie Glen
- Junior detective:
- Mark Gatiss
- Paul (Reform Party worker):
- Lee Ingleby
- Broadcast journalist:
- Reece Shearsmith
- First studio manager:
- Ian Harker
- Second studio manager:
- Colin Guthrie
- Ms Helen Perry:
- Patience Tomlinson
- Mr Bradley:
- Robert Addie
- World at One presenter:
- Richard Whitmore
