Marcus Vinicius

Robert Taylor

Lygia

Deborah Kerr

Neron

Peter Ustinov

Petroniusz

Leo Genn

Poppaea

Patricia Laffan

Peter

Finlay Currie

Paul of Tarsus

Abraham Sofaer

Eunice

Marina Berti

Ursus

Buddy Baer

Plautius

Felix Aylmer

Pomponia

Nora Swinburne

Tigellinus

Ralph Truman

Nerva

Norman Wooland

Nazarius

Peter Miles

Terpnos

Geoffrey Dunn

Seneca

Nicholas Hannen

Acte

Rosalie Crutchley

Phaon

D.A. Clarke-Smith

Chilo

John Ruddock

Croton

Arthur Walge

Miriam

Elspeth March

Rufia

Strelsa Brown

Lucan

Alfredo Varelli

Flavius

Roberto Ottaviano

Anaxander

William Tubbs

Galba

Pietro Tordi

Dancer - Assyrian Dance at Nero's Banquet

Marika Aba

Pedicurist

Lia DeLeo

Lygia's Slave (uncredited)

Sophia Loren

Wine Bibber (uncredited)

Adriano Ambrogi

Guard Captain

William Taylor

Christian Prisoner in Arena (uncredited)

Elizabeth Taylor

Woman (uncredited)

Anna Arena

Christian Prisoner in Arena (uncredited)

Alfred Baillou

Narrator (voice) (uncredited)

Walter Pidgeon

Senator (uncredited)

Giacomo Barnas

Fisherman (uncredited)

Scott R. Beal

Officer (uncredited)

John Binns

Slave Girl (uncredited)

Francesca Biondi

Noble (uncredited)

Carlo Borelli

Hasta (2nd Praetorian) (uncredited)

Leslie Bradley

Undetermined Role

Alfred Brown

Mirmillon (uncredited)

Valentino Bruchi

Serving Woman

Alice Bishop-Skinner

Man (uncredited)

Frank Colson

Young Christian Girl (uncredited)

Adrienne Corri

Undetermined Role

Phyllis Brown

Apostle (uncredited)

Daniel de Jonghe

Woman (uncredited)

Liana Del Balzo

Pedicurist (uncredited)

Lia Di Leo

Man (uncredited)

Franco Fantasia

Apostle (uncredited)

Al Ferguson

Mounted Captain (uncredited)

Enzo Fiermonte

Man with Wine Cup (uncredited)

Enrico Formichi

Young Unbaptized Man (uncredited)

John Fostini

Senator (uncredited)

Dino Galvani

Slave (uncredited)

Richard Garrick

Fisherman (uncredited)

Jack George

Christ (voice) (uncredited)

Robin Hughes

Apostle (uncredited)

Philip Kieffer

Man (uncredited)

Lee Kresel

Guard (uncredited)

Richard Larke

Older Woman (uncredited)

Helena Makowska

Nubian Slave Girl (uncredited)

Anna Mancini

Fisherman (uncredited)

Michael Mark

Parmenida (uncredited)

Clelia Matania

Legionnaire (uncredited)

Richard McNamara

Woman (uncredited)

Harriet Medin

Lydia's Guard (uncredited)

Dario Michaelis

Fisherman (uncredited)

Ernesto Molinari

Guard (uncredited)

John Myhers

Apostle (uncredited)

Vincent Neptune

Apostle (uncredited)

Louis Payne

Headkeeper (uncredited)

Aldo Pini

Steward (uncredited)

Alberto Plebani

Crying Girl (uncredited)

Paola Quattrini

Hairdresser (uncredited)

Alfredo Rizzo

Guard Tying the Christians (uncredited)

Amerigo Santarelli

Man (uncredited)

Leonardo Scavino

Imperial Guard (uncredited)

Bud Spencer

Centurian (uncredited)

Michael Tor

Apostle (uncredited)

Carlo Tricoli

Guard (uncredited)

Renato Valente

Hairdresser (uncredited)

Giuseppe Varni

Fisherman (uncredited)

Harry J. Vejar

Woman (uncredited)

Maria Zanoli

Chariot Driver (uncredited)

Christopher Lee

(uncredited)

Filippo Spoletini