- Author:
- Dorothy L. Sayers
- Adapted by:
- Bill Craig
- Producer:
- Richard Beynon
- Director:
- Rodney Bennett
- Lord Peter Wimsey:
- Ian Carmichael
- Dian de Momerie:
- Bridget Armstrong
- Mr Tallboy:
- Paul Darrow
- Miss Parton:
- Caroline Dowdeswell
- Miss Rossiter:
- Shirley Cain
- Miss Meteyard:
- Fiona Walker
- Major Milligan:
- Peter Bowles
- Helen, Duchess of Denver:
- Gabrielle Brune
- Lady Mary:
- Rachel Herbert
- Bracket:
- Norman Lumsden
- Puncheon:
- Ian Gelder
- Landlord:
- Royston Tickner
- Man in pub:
- John Rapley
- Mountjoy:
- Hilary Wontner
- Chief Insp. Parker:
- Mark Eden
- Ethel Vavasour:
- Janet Key
- Mr Willis:
- Christopher Timothy
- Cummings:
- Antony Carrick
- Withers:
- Alan Foss
- Mr Pym:
- Peter Pratt
- Taxi driver:
- Alan Chuntz
- Mr Ingleby:
- John Hallam
