Sullivan Stapleton Themistocles Eva Green Artemisia Lena Headey Queen Gorgo Callan Mulvey Scylias David Wenham Dillios Rodrigo Santoro Xerxes Jack O'Connell Calisto Andrew Tiernan Ephialtes Ashraf Barhom General Bandari Andrew Pleavin Daxos Hans Matheson Aesyklos Peter Mensah Persian Emissary Ben Turner General Artaphernes Christopher Boyer Senator Fred Ochs Senator Price Carson Senator John Michael Herndon Senator David Pevsner Senator Peter Ferdinando Greek Ambassador Igal Naor King Darius Luke Roberts Butcher George Georgiou Greek Citizen Farshad Farahat Persian Officer Christopher Sciueref General Kashani Vincent Walsh Naval Commander Atanas Srebrev Blacksmith Dimo Alexiev Rope Puller Velizar Peev Spartan Warrior (uncredited) Sullivan Stapleton Themistocles Eva Green Artemisia Lena Headey Queen Gorgo Callan Mulvey Scylias David Wenham Dillios Rodrigo Santoro Xerxes Jack O'Connell Calisto Andrew Tiernan Ephialtes Ashraf Barhom General Bandari Andrew Pleavin Daxos Hans Matheson Aesyklos Peter Mensah Persian Emissary Ben Turner General Artaphernes Christopher Boyer Senator Fred Ochs Senator Price Carson Senator John Michael Herndon Senator David Pevsner Senator Peter Ferdinando Greek Ambassador Igal Naor King Darius Luke Roberts Butcher George Georgiou Greek Citizen Farshad Farahat Persian Officer Christopher Sciueref General Kashani Steven Cree Decapitated Greek marine Caitlin Carmichael 8 Year Old Artemisia Jade Chynoweth 13 Year Old Artemisia Kevin Fry-Bowers Lascivious Greek David Sterne Old Statesman Gregor Truter Small Ambassador Vincent Walsh Naval Commander Nick Court Theban Commander Mark Killeen Greek Commander Atanas Srebrev Blacksmith Mark Aaron Wagner Artemesia's Father (uncredited) Nancy McCrumb Athenian Woman (uncredited) Bo Roberts Spartan Warrior (uncredited) Gregory Shelby Spartan Warrior (uncredited) Wayne Dalglish Young Spartan (uncredited) Velimir Velev Hermit (uncredited) Dimo Alexiev Rope Puller Georgi Stanislavov Persian Bomber 03 (uncredited)