Answer
The prisoner, Edwin, portrayed by Oleg Taktarov in the 2010 science-fiction action film "Predators," holds a pivotal role due to his resourcefulness and survival skills after surviving his encounter with Predators in previous hunts during an unknown length of time. His extensive knowledge of their behaviors and strategies makes him a valuable guide for Royce's (Adrien Brody) newfound group that accidentally finds themselves on the Predator's hunting ground.