Darren Ryan
— John Mantrixx (as John Mantrixx)
Jason Chilton
— Barrett / Orderly #3 / Russian Soldier #5
Kacey Samiee
— Cheni Mantrixx
Richard Dodwell
— General Kerbey
Elle LaMont
— Dr. Dawn Bergman
Timothy McKinney
— Sullee
Maya Glick
— Maelstrom
Marc Jeffreys
— General Ares
Vernon Wells
— Barrett Transformed
Don Daro
— Sergei Daronov