Rossano Brazzi

Archimede

Tina Louise

Diana / Artemide / Lucrezia

Sylva Koscina

Clio

Enrico Maria Salerno

Gorgia

Gino Cervi

Gerone

Alberto Farnese

Marcello

Luciano Marin

Marco

Alfredo Varelli

Kriton

Walter Grant

Tiresias

Mara Lombardo

Selinonte Dancer

Corinne Capri

Girl in Troupe (uncredited)

Enzo Cerusico

Giovane allievo (uncredited)

Antonio Corevi

Nobleman (uncredited)

Consalvo Dell'Arti

Citizen (uncredited)

Cesare Fantoni

Padre di Archimede (uncredited)

Pietro Francisci