- Author:
- Geza Herczeg
- Author:
- Heinz Hereld
- Translated from the German by:
- Noel Langley
- Dramatised by:
- John Hopkins
- Designer:
- Fanny Taylor
- Producer:
- Michael Bakewell
- Director:
- Rudolph Cartier
- President of the Court:
- Stephen Murray
- Counsel for the Prosecution - Seyffert:
- Peter Copley
- Counsel for the Prosecution - Martin:
- Peter Woodthorpe
- Counsel for the Defence:
- Eotvoes: Emlyn Williams
- Friedmann:
- Alan Keith
- Chief Investigator Bary:
- David Cargill
- Baron Onody, M.P.:
- Felix Felton
- Joseph Scharf:
- Martin Benson
- Abraham Buxbaum:
- Thomas Gallagher
- Rabbi Taub:
- Martin Miller
- Dr. Szabo:
- John Cazabon
- Dr. Dheri:
- Henry Longhurst
- Moritz Scharf:
- Ronald Lacey
- Mrs. Solymosi:
- Daphne Slater
- Sophie Solymosi:
- Petra Markham
- Mrs. Huri:
- Marjorie Rhodes
- Margit Dheri:
- Alison Frazer
- Mrs. Grossberg:
- Catharina Ferraz
- Aunt Ilona:
- Muguette de Braie
- Professor Scheuthauer:
- Kevin Brennan
- David Hersko:
- Stanley Lebor
- Farkas:
- Glenn Williams
- Usher:
- Alan Selwyn
