Josh Duhamel as Sheldon Sampson / The Utopian
Ben Daniels as Walter Sampson / Brainwave
Leslie Bibb as Grace Kennedy-Sampson / Lady Liberty
Andrew Horton as Brandon Sampson / The Paragon
Elena Kampouris as Chloe Sampson
Mike Wade as Fitz Small / The Flare
Matt Lanter as George Hutchence / Skyfox
Ian Quinlan as Hutch Hutchence
Tenika Davis as Petra Small / The Flare II
Richard Blackburn as Chester Sampson
David Julian Hirsh as Richard Conrad / Blue Bolt
Tyler Mane as Blackstar
Meg Chambers Steedle as Jane
Aiza Ntibarikure as Sierra / Ectoplex