This opera revolves around the demonic collective possession suffered by the Ursuline nuns in the convent of Loudun in 1634. The story concentrates on the handsome but doomed Urbain Grandier who fights against fanaticism and evil.

Cvetka Ahlin
as Claire - Ursuline Sister

Heinz Blankenburg
as Mannoury - a surgeon

Ursula Boese
as Louise - Ursuline sister

Franz-Rudolf Eckhardt
as Clerk of the Count

Joachim Hess
as d'Armagnac - the Mayor of Loudun

Andrzej Hiolski
as Grandier - the vicar of St. Peter's Church

Ingeborg Kruger
as Philippe - a young girl

Bernard Ładysz
as Father Barré - the vicar of Chinon

Rolf Mamero
as de Cerisay - town judge

Kurt Marschner
as Adam - a chemist