Flavia the Heretic

Florinda Bolkan

Flavia Gaetani

María Casares

Sister Agatha

Claudio Cassinelli

Abraham

Anthony Higgins

Ahmed

Spiros Focás

The French Duke

Diego Michelotti

Flavia's Father

Raika Juri

Sister Livia

Jill Pratt

Mother Superior

Franca Grey

Village Girl

Laura De Marchi

Tarantula Cult Woman

Eduardo Filipone

Ciro Ippolito

Carla Mancini

Luigi Antonio Guerra

Giuseppe Pertile

Guido Celano

Stefano Trabalza

Valentino Macchi

Maria Teresa Piaggio

Jole Silvani

Agnès Nobecourt

Romano Moraschini

Executioner (uncredited)