Topol
Galileo Galilei
Edward Fox
Cardinal Inquisitor
Colin Blakely
Priuli
Georgia Brown
Ballad Singer's Wife
Clive Revill
Ballad Singer
Margaret Leighton
Elderly Court Lady
John Gielgud
The Old Cardinal
Michael Gough
Sagredo
Michael Lonsdale
Cardinal Barberini (later Pope Urban VIII)
Richard O'Callaghan
Fulganzio
Tim Woodward
Ludovico Marsili
Judy Parfitt
Angelica Sarti
John McEnery
Federzoni
Patrick Magee
Cardinal Bellarmin
Mary Larkin
Virginia