出演

• Cyril Cusack — Galileo
• Георги Калоянчев — Giordano Bruno
• Gigi Ballista — commissario domenicano
• Giulio Brogi — Giovanni Francesco Sagredo
• Piero Vida — Papa Urbano VIII
• Georgi Cherkelov — Toskana's ambasador
• Nikolay Doychev — Belarmin
• Miroslav Mindov — Kardinal Bordzhiya
• Maya Dragomanska — figlia di Galileo
• Giampiero Frondini — cardinale