Jean-Claude Van Damme Was Replaced By Kevin Peter Hall In Predator
Predator in Predator may be recognizable by its look, not the actor behind it, but there was a chance Jean-Claude Van Damme could have embodied the feared hunter. However, apparently the prosthetics and the costume were so stifling, the actor even passed out wearing them. The real reason why Van Damme left the project is a bit of a mystery, but his place was taken by Kevin Peter Hall.
"Certain scenes within this movie feature James Purefoy as V, who was originally cast in the role, but replaced by Hugo Weaving four weeks into filming. Weaving's voice was simply dubbed over Purefoy's performance in post-production. Director James McTeigue said in an interview: " 'Can I tell the difference? Yeah. Can the audience tell? I doubt it.' "
https://www.imdb.com/title/tt0434409/trivia?ref_=tt_trv_trv