Charlton Heston as El Cid Rodrigo de Vivar

Sophia Loren as Jimena

Raf Vallone as Count Ordóñez

Geneviève Page as Princess Urraca

John Fraser as Prince Alfonso

Gary Raymond as Prince Sancho

Hurd Hatfield as Arias

Massimo Serato as Fanez

Frank Thring as Al Kadir

Michael Hordern as Don Diego

Andrew Cruickshank as Count Gormaz

Douglas Wilmer as Moutamin

Tullio Carminati as Priest

Ralph Truman as King Ferdinand

Christopher Rhodes as Don Martín

Carlo Giustini as Bermúdez

Gérard Tichy as King Ramírez

Fausto Tozzi as Dolfos

Barbara Everest as Mother Superior

Katina Noble as Nun

Nerio Bernardi as Soldier

Franco Fantasia as Soldier

Herbert Lom as Ben Yussuf

Omero Capanna as Fighter (uncredited)

Luis Fernández de Eribe as (uncredited)

Antonio Mayans as (uncredited)

Paul Müller as Arabian Assistant Doctor (uncredited)

Paul Naschy as Extra (uncredited)

Rosalba Neri as Harem Girl (uncredited)

Virgílio Teixeira as (uncredited)

José Terrón as Soldier (uncredited)