as Logan: The charismatic but ruthless mastermind behind the illegal fighting ring.

as Taiga: A fellow prisoner and fighter who interacts with David during his captivity.

David Lord (Kellan Lutz), a fireman grieving the loss of his wife, is kidnapped and forced to participate in "The Deathgames"—an illegal, high-stakes web-show where fighters must kill their opponents to survive. Cast and Characters

as Lori: David's pregnant wife, whose tragic death in a car accident sets the story in motion.

The film concludes with a significant : it is revealed that David Lord is actually an undercover government agent who allowed himself to be captured to infiltrate and expose the Deathgames operation from the inside. Arena (Video 2011) - IMDb

The film features a mix of well-known Hollywood stars and specialized action performers:

as David Lord: The protagonist who must win ten consecutive matches to earn his freedom.

as Milla: A recruiter for the games who seduces and kidnaps David. Plot Summary and Twist