- Felix Aylmer - Plautius
- Nora Swinburne - Pomponia
- Ralph Truman - Tigellinus
- Norman Wooland - Nerva
- Peter Miles - Nazarius
- Geoffrey Dunn - Terpnos
- Nicholas Hannen - Seneca
- D.A. Clarke-Smith - Phaon
- Rosalie Crutchley - Acte
- John Ruddock - Chilo
- Arthur Walge - Croton
- Elspeth March - Miriam
- Strelsa Brown - Rufia
- Alfredo Varelli - Lucan
- Roberto Ottaviano - Flavius
- William Tubbs - Anaxander
- Pietro Tordi - Galba
- Marika Aba - Dancer at Nero's Banquet (uncredited)
- Adriano Ambrogi - Wine Bibber (uncredited)
- Anna Arena - Woman (uncredited)
- Alfred Baillou - Christian Prisoner in Arena (uncredited)
- Giacomo Barnas - Senator (uncredited)
- Scott R. Beal - Fisherman (uncredited)
- John Binns - Officer (uncredited)
- Francesca Biondi - Slave Girl (uncredited)
- Carlo Borelli - Noble (uncredited)
- Leslie Bradley - Hasta (2nd Praetorian) (uncredited)
- Alfred Brown - Man (uncredited)
- Valentino Bruchi - Mirmillon (uncredited)
- Dante Ciriaci - Wine Bibber (uncredited)
- Frank Colson - Man (uncredited)
- Adrienne Corri - Young Christian Girl (uncredited)
- Luca Cortese - Old Man (uncredited)
- David Craig - Little Boy (uncredited)
- Daniel de Jonghe - Apostle (uncredited)
- Liana Del Balzo - Woman (uncredited)
- Jack Del Rio - Apostle (uncredited)
- Lia Di Leo - Pedicurist (uncredited)
- Franco Fantasia - Man (uncredited)
- Cesare Fasulo - Noble (uncredited)
- Al Ferguson - Apostle (uncredited)
- Enzo Fiermonte - Mounted Captain (uncredited)
- Enrico Formichi - Man with Wine Cup (uncredited)
- John Fostini - Young Unbaptized Man (uncredited)
- Dino Galvani - Senator (uncredited)
- Richard Garrick - Slave (uncredited)
- Jack George - Fisherman (uncredited)
- Carlo Ghisini - Guard (uncredited)
- Trudy Glassford - Woman (uncredited)
- Joan Griffiths - Woman (uncredited)
- Robin Hughes - Christ (voice) (uncredited)
- Adam Jennette - Man (uncredited)
- Philip Kieffer - Apostle (uncredited)
- Gipsy Kiss - Slave Girl (uncredited)
- Lee Kresel - Man (uncredited)
- Richard Larke - Guard (uncredited)
- Sophia Loren - Lygia's Slave (uncredited)
- Giovanni Lovatelli - Banquet Man (uncredited)
- Helena Makowska - Older Woman (uncredited)
- Anna Mancini - Nubian Slave Girl (uncredited)
- Michael Mark - Fisherman (uncredited)
- Clelia Matania - Parmenida (uncredited)
- Richard McNamara - Legionnaire (uncredited)
- Harriet Medin - Woman (uncredited)
- Dario Michaelis - Lydia's Guard (uncredited)
- Ernesto Molinari - Fisherman (uncredited)
- John Myhers - Guard (uncredited)
- Vincent Neptune - Apostle (uncredited)
- Anna Maria Padoan - Young Unbaptized Woman (uncredited)
- Louis Payne - Apostle (uncredited)
- Walter Pidgeon - Narrator (voice) (uncredited)
- Aldo Pini - Headkeeper (uncredited)
- Alberto Plebani - Steward (uncredited)
- Paola Quattrini - Crying Girl (uncredited)
- Dino Raffaelli - Man (uncredited)
- George Restivo - Apostle (uncredited)
- Alfredo Rizzo - Hairdresser (uncredited)
- Amerigo Santarelli - Guard Tying the Christians (uncredited)
- Leonardo Scavino - Man (uncredited)
- Alessandro Serbaroli - Officer (uncredited)
- Bud Spencer - Imperial Guard (uncredited)
- Raffaele Tana - Man (uncredited)
- Elizabeth Taylor - Christian Prisoner in Arena (uncredited)
- William Taylor - Guard Captain / Marcus' Guard (uncredited)
- Michael Tor - Centurian (uncredited)
- Giuseppe Tosi - Wrestler (uncredited)
- Carlo Tricoli - Apostle (uncredited)
- Renato Valente - Guard (uncredited)
- Scilla Vannucci - White Slave Girl (uncredited)
- Giuseppe Varni - Hairdresser (uncredited)
- Dianora Veiga - Slave Girl (uncredited)
- Harry J. Vejar - Fisherman (uncredited)
- Romilda Villani - Slave Girl (uncredited)
- Maria Zanoli - Woman (uncredited)
- Christopher Lee - Chariot Driver (uncredited)
- Sergio Leone
- Mervyn LeRoy
- Anthony Mann
- Henryk Sienkiewicz
- John Lee Mahin
- Irene Howard
- Sam Zimbalist
- Miklós Rózsa
- Douglas Shearer
Robert Taylor interpreta a Marcus Vinicius en la película.
Deborah Kerr hace el papel de Lygia.
Leo Genn interpreta a Petronius en la película.
Peter Ustinov interpreta a Nero en la película.
Patricia Laffan hace el papel de Poppaea.
Finlay Currie interpreta a Peter en la película.
Abraham Sofaer interpreta a Paul en la película.
Marina Berti interpreta a Eunice en la película.
Buddy Baer interpreta a Ursus en la película.
Felix Aylmer interpreta a Plautius en la película.
Nora Swinburne interpreta a Pomponia en la película.
Ralph Truman interpreta a Tigellinus en la película.
Norman Wooland interpreta a Nerva en la película.
Peter Miles hace el papel de Nazarius.
Geoffrey Dunn interpreta a Terpnos en la película.
Nicholas Hannen hace el papel de Seneca.
D.A. Clarke-Smith interpreta a Phaon en la película.
Rosalie Crutchley hace el papel de Acte.
John Ruddock interpreta a Chilo en la película.
Arthur Walge interpreta a Croton en la película.
Elspeth March interpreta a Miriam en la película.
Strelsa Brown hace el papel de Rufia.
Alfredo Varelli interpreta a Lucan en la película.
Roberto Ottaviano interpreta a Flavius en la película.
William Tubbs interpreta a Anaxander en la película.
Pietro Tordi interpreta a Galba en la película.
Marika Aba hace el papel de Dancer at Nero's Banquet (uncredited).
Adriano Ambrogi interpreta a Wine Bibber (uncredited) en la película.
Anna Arena interpreta a Woman (uncredited) en la película.
Alfred Baillou interpreta a Christian Prisoner in Arena (uncredited) en la película.
Giacomo Barnas interpreta a Senator (uncredited) en la película.
Scott R. Beal interpreta a Fisherman (uncredited) en la película.
John Binns hace el papel de Officer (uncredited).
Francesca Biondi interpreta a Slave Girl (uncredited) en la película.
Carlo Borelli interpreta a Noble (uncredited) en la película.
Leslie Bradley interpreta a Hasta (2nd Praetorian) (uncredited) en la película.
Alfred Brown interpreta a Man (uncredited) en la película.
Valentino Bruchi interpreta a Mirmillon (uncredited) en la película.
Dante Ciriaci hace el papel de Wine Bibber (uncredited).
Frank Colson interpreta a Man (uncredited) en la película.
Adrienne Corri hace el papel de Young Christian Girl (uncredited).
Luca Cortese interpreta a Old Man (uncredited) en la película.
David Craig interpreta a Little Boy (uncredited) en la película.
Daniel de Jonghe interpreta a Apostle (uncredited) en la película.
Liana Del Balzo hace el papel de Woman (uncredited).
Jack Del Rio hace el papel de Apostle (uncredited).
Lia Di Leo interpreta a Pedicurist (uncredited) en la película.
Franco Fantasia hace el papel de Man (uncredited).
Cesare Fasulo interpreta a Noble (uncredited) en la película.
Al Ferguson interpreta a Apostle (uncredited) en la película.
Enzo Fiermonte hace el papel de Mounted Captain (uncredited).
Enrico Formichi interpreta a Man with Wine Cup (uncredited) en la película.
John Fostini interpreta a Young Unbaptized Man (uncredited) en la película.
Dino Galvani hace el papel de Senator (uncredited).
Richard Garrick interpreta a Slave (uncredited) en la película.
Jack George hace el papel de Fisherman (uncredited).
Carlo Ghisini interpreta a Guard (uncredited) en la película.
Trudy Glassford hace el papel de Woman (uncredited).
Joan Griffiths hace el papel de Woman (uncredited).
Robin Hughes interpreta a Christ (voice) (uncredited) en la película.
Adam Jennette interpreta a Man (uncredited) en la película.
Philip Kieffer hace el papel de Apostle (uncredited).
Gipsy Kiss hace el papel de Slave Girl (uncredited).
Lee Kresel interpreta a Man (uncredited) en la película.
Richard Larke hace el papel de Guard (uncredited).
Sophia Loren interpreta a Lygia's Slave (uncredited) en la película.
Giovanni Lovatelli interpreta a Banquet Man (uncredited) en la película.
Helena Makowska interpreta a Older Woman (uncredited) en la película.
Anna Mancini interpreta a Nubian Slave Girl (uncredited) en la película.
Michael Mark interpreta a Fisherman (uncredited) en la película.
Clelia Matania interpreta a Parmenida (uncredited) en la película.
Richard McNamara interpreta a Legionnaire (uncredited) en la película.
Harriet Medin interpreta a Woman (uncredited) en la película.
Dario Michaelis interpreta a Lydia's Guard (uncredited) en la película.
Ernesto Molinari interpreta a Fisherman (uncredited) en la película.
John Myhers interpreta a Guard (uncredited) en la película.
Vincent Neptune hace el papel de Apostle (uncredited).
Anna Maria Padoan interpreta a Young Unbaptized Woman (uncredited) en la película.
Louis Payne interpreta a Apostle (uncredited) en la película.
Walter Pidgeon interpreta a Narrator (voice) (uncredited) en la película.
Aldo Pini interpreta a Headkeeper (uncredited) en la película.
Alberto Plebani interpreta a Steward (uncredited) en la película.
Paola Quattrini interpreta a Crying Girl (uncredited) en la película.
Dino Raffaelli interpreta a Man (uncredited) en la película.
George Restivo interpreta a Apostle (uncredited) en la película.
Alfredo Rizzo interpreta a Hairdresser (uncredited) en la película.
Amerigo Santarelli hace el papel de Guard Tying the Christians (uncredited).
Leonardo Scavino interpreta a Man (uncredited) en la película.
Alessandro Serbaroli hace el papel de Officer (uncredited).
Bud Spencer interpreta a Imperial Guard (uncredited) en la película.
Raffaele Tana interpreta a Man (uncredited) en la película.
Elizabeth Taylor interpreta a Christian Prisoner in Arena (uncredited) en la película.
William Taylor interpreta a Guard Captain / Marcus' Guard (uncredited) en la película.
Michael Tor hace el papel de Centurian (uncredited).
Giuseppe Tosi hace el papel de Wrestler (uncredited).
Carlo Tricoli interpreta a Apostle (uncredited) en la película.
Renato Valente hace el papel de Guard (uncredited).
Scilla Vannucci hace el papel de White Slave Girl (uncredited).
Giuseppe Varni interpreta a Hairdresser (uncredited) en la película.
Dianora Veiga interpreta a Slave Girl (uncredited) en la película.
Harry J. Vejar interpreta a Fisherman (uncredited) en la película.
Romilda Villani interpreta a Slave Girl (uncredited) en la película.
Maria Zanoli hace el papel de Woman (uncredited).
Christopher Lee interpreta a Chariot Driver (uncredited) en la película.
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