artwork Gerd Pircher
directed by Dietrich Auerbach
voice actor [detective sergeant caruso] Rolf Marnitz
voice actor [hotelportier] Kurt Pratsch-Kaufmann
voice actor [hutchinson hatch] Klaus Herm
voice actor [labordiener franz] Georg Stegers
voice actor [madame du chateauneuf] Lieselotte Rau
voice actor [monsieur bertrand] Klaus Miedel
voice actor [pensionswirt] Herbert Weißbach
voice actor [professor dexter] Otto Sander
voice actor [professor van dusen] Friedrich W. Bauschulte
written-by Michael Koser
written-by [vorlage] Jacques Futrelle
Copyright (c) RIAS Berlin
Copyright (c) DeutschlandRadio
Produced For RIAS Berlin
Copyright (c) Michael Koser
Produktion: RIAS Berlin
First broadcasted: 13.09.1978
Episode 14 in chronological order.