Sullivan Stapleton as Themistocles

Eva Green as Artemisia

Lena Headey as Queen Gorgo

Callan Mulvey as Scylias

David Wenham as Dillios

Rodrigo Santoro as Xerxes

Jack O'Connell as Calisto

Andrew Tiernan as Ephialtes

Ashraf Barhom as General Bandari

Andrew Pleavin as Daxos

Hans Matheson as Aesyklos

Peter Mensah as Persian Emissary

Ben Turner as General Artaphernes

Christopher Boyer as Senator

Fred Ochs as Senator

Price Carson as Senator

John Michael Herndon as Senator

David Pevsner as Senator

Peter Ferdinando as Greek Ambassador

Igal Naor as King Darius

Luke Roberts as Butcher

George Georgiou as Greek Citizen

Farshad Farahat as Persian Officer

Christopher Sciueref as General Kashani

Steven Cree as Decapitated Greek marine

Caitlin Carmichael as 8 Year Old Artemisia

Jade Chynoweth as 13 Year Old Artemisia

Kevin Fry-Bowers as Lascivious Greek

David Sterne as Old Statesman

Gregor Truter as Small Ambassador

Vincent Walsh as Naval Commander

Nick Court as Theban Commander

Mark Killeen as Greek Commander

Stefan Ivanov as Persian Commander

Atanas Srebrev as Blacksmith

Mark Aaron Wagner as Artemesia's Father (uncredited)

Nancy McCrumb as Athenian Woman (uncredited)

Hunter Clowdus as Spartan Warrior (uncredited)

Bo Roberts as Spartan Warrior (uncredited)

Gregory Shelby as Spartan Warrior (uncredited)

Wayne Dalglish as Young Spartan (uncredited)

Velimir Velev as Hermit (uncredited)

Dimo Alexiev as Rope Puller

Georgi Stanislavov as Persian Bomber 03 (uncredited)

Dimiter Doichinov as Spartan Warrior (uncredited)

Velizar Peev as Spartan Warrior (uncredited)

Aleksandar Belovski as Greek Citizen (uncredited)