Orson Welles
Justinian
Harriet Andersson
Mathawsintha
Laurence Harvey
Cethegus
Michael Dunn
Narses
Sylva Koscina
Theodora
Dieter Eppler
Thorsmund
Ewa Strömberg
Rauthgundis
Friedrich von Ledebur
Hildebrand
Ingrid Boulting
Julia (as Ingrid Brett)
Lang Jeffries
Belisar
Robert Hoffmann
Totila
Florin Piersic
Witichis
Emanoil Petruţ
Teja
Ion Dichiseanu
Furius
Mircea Anghelescu
Aligern
Adela Mărculescu
Aspa