Richard Egan

as King Leonidas

Ralph Richardson

as Themistocles of Athens

Diane Baker

as Ellas

Barry Coe

as Phylon

David Farrar

as Xerxes

Anne Wakefield

as Artemisa

Donald Houston

as Hydarnes

Anna Synodinou

as Gorgo

Robert Brown

as Pentheus

Laurence Naismith

as First Delegate

Ivan Triesault

as Demaratus

Charles Fawcett

as Megistias

Michalis Nikolinakos

as Myron

Sandro Giglio

as Xenathon

Anna Raftopoulou

as Toris

Dimos Starenios

as Samos

Yorgos Moutsios

as Demophilus of Thespiae

Nikos Papakonstantinou

as Grellas

Kostas Baladimas

Zannino

Kieron Moore

as Ephialtes

John Crawford

as Agathon the Spartan Spy