Gerard Butler
King Leonidas
Lena Headey
Gorgo
Dominic West
Theron
David Wenham
Dilios
Vincent Regan
Captain
Michael Fassbender
Stelios
Tom Wisdom
Astinos
Andrew Pleavin
Daxos
Andrew Tiernan
Ephialtes
Rodrigo Santoro
Xerxes
Giovani Cimmino
Pleistarchos
Stephen McHattie
Loyalist
Greg Kramer
Ephor #1
Alex Ivanovici
Ephor #2
Kelly Craig
Oracle Girl
Eli Snyder
Leonidas @ 7/8 yrs
Tyler Neitzel
Leonidas @ 15 yrs
Tim Connolly
Leonidas' Father
Marie-Julie Rivest
Leonidas' Mother
Sebastian St. Germain
Fighting Boy (12 years old)
Peter Mensah
Messenger
Arthur Holden
Partisan
Michael Sinelnikoff
Elder Councilman
John Dunn-Hill
Councilman
Dennis St John
Spartan Baby Inspector