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