Justinian
Orson Welles
Cethegus
Laurence Harvey
Aligern
Mircea Anghelescu
Furius
Ion Dichiseanu
Aspa
Adela Mărculescu
Adrian Mihai
Teja
Emanoil Petruţ
Witichis
Florin Piersic
Hildebrand
Friedrich von Ledebur
Theodora
Sylva Koscina
Mathawsintha
Harriet Andersson
Narses
Michael Dunn
Julia (as Ingrid Brett)
Ingrid Boulting
Thorsmund
Dieter Eppler
Belisar
Lang Jeffries
Totila
Robert Hoffmann
Rauthgundis
Ewa Strömberg
Second Unit Director of Photography
Sergiu Nicolaescu
Director
Adaptation
David Ambrose
Producer
Artur Brauner
Original Music Composer
Riz Ortolani
Line Producer
Peter Hahne
Writer
Ladislas Fodor
Robert Siodmak
Stunts
Szabolcs Cseh
Andrew Marton
Joe Pollini
Doru Năstase
Production Design
Ernst Schomer
Kuli Sander
Costume Design
Irms Pauli
Director of Photography
Richard Angst
Novel
Felix Dahn
Editor
Alfred Srp