- Author:
- Karel Capek
- Author:
- Josef Capek
- Translated from the Czech by:
- Paul Selver
- Adapted for the English stage by:
- Nigel Playfair
- Adapted for the English stage by:
- Clifford Bax
- Adapted for radio by:
- Ian Cotterell
- Music by:
- David Cain
- Musician:
- Christopher Hogwood
- Musician:
- John Royston Mitchell
- Realised in the BBC Radiophonic Workshop by:
- Dick Mills
- Technical Presentation:
- Peter Novis
- Assisted by:
- Anthea Davies
- Assisted by:
- Allyson Reed
- Producer/Director:
- Ian Cotterell
- The Tramp:
- Anthony Jackson
- The Lepidopterist:
- Malcolm Hayes
- Butterflies - Felix:
- John Rye
- Butterflies - Iris:
- Carole Boyd
- Butterflies - Clytie:
- Margaret Robertson
- Butterflies - Otto:
- Nigel Lambert
- Marauders - Mr Beetle:
- Cyril Shaps
- Marauders - Mrs Beetle:
- Betty Hardy
- Marauders - Strange Beetle:
- Paul Gaymon
- Marauders - Ichneumon Fly:
- Peter Woodthorpe
- Marauders - Its Larva:
- Kate Coleridge
- Marauders - Mr Cricket:
- Michael Deacon
- Marauders - Mrs Cricket:
- Carole Boyd
- Marauders - Parasite:
- Malcolm Hayes
- Ants - Chief Engineer:
- Peter Woodthorpe
- Ants - Second Engineer:
- Hector Ross
- Ants - Blind Ant:
- Paul Gaymon
- Ants - Inventor:
- Cyril Shaps
- Ants - Messenger:
- Michael Cochrane
- Ants - Journalist:
- Nigel Lambert
- Ants - Yellow Leader:
- Peter Whitman
- Epilogue - Chrysalis:
- Judy Bennett
- Epilogue - Moths and Snails:
- Margaret Robertson
- Epilogue - Moths and Snails:
- Kate Coleridge
- Epilogue - Woodcutter:
- Hector Ross
- Epilogue - Woman:
- Betty Hardy
