Orson Welles
Justinian
Laurence Harvey
Cethegus
Sylva Koscina
Theodora
Harriet Andersson
Mathawsintha
Michael Dunn
Narses
Ingrid Boulting
Julia (as Ingrid Brett)
Dieter Eppler
Thorsmund
Lang Jeffries
Belisar
Robert Hoffmann
Totila
Ewa Strömberg
Rauthgundis