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Casting

Silver and Gordon first approached Arnold Schwarzenegger with the lead role

Kevin Peter Hall as the Predator

Silver and Gordon first approached Arnold Schwarzenegger with the lead role.

Schwarzenegger said, "The first thing I look for in a script is a good idea, a majority of scripts are rip-offs of other movies. People think they can become successful overnight. They sat down one weekend and wrote a script because they read that Stallone did that with Rocky. Predator was one of the scripts I read, and it bothered me in one way. It was just me and the alien. So we re-did the whole thing so that it was a team of commandos and then I liked the idea. I thought it would make a much more effective movie and be much more believable. I liked the idea of starting out with an action-adventure, but then coming in with some horror and science fiction,".[citation needed]

To play the elite band of mercenaries, both Silver and Gordon, with co-producer John Davis, put out a casting net for other larger-than-life men of action. Carl Weathers, who had been memorable as boxer Apollo Creed in the Rocky films was their first choice to play Dillon, while professional wrestler and former Navy UDT Jesse Ventura was hired for his formidable physique as Blain. Native Americans Sonny Landham and Richard Chaves, and African-American Bill Duke, who co-starred alongside Schwarzenegger in Commando, provided the ethnic balance. As a favor to the writer of Joel Silver's blockbuster Lethal Weapon, the studio hired screenplay writer Shane Black not only to play a supporting role in the film, but also to keep an eye on McTiernan due to the director's inexperience.

Jean-Claude Van Damme was originally cast as the Predator creature, the idea being that the physical action star would use his martial arts skills to make the Predator an agile, ninja-esque hunter. When compared to Schwarzenegger, Weathers, and Ventura, actors known for their bodybuilding regimens, it became apparent a more physically-imposing man was needed to make the creature appear threatening. Additionally, it was reported that Van Damme constantly complained about the monster suit being too hot, causing him to pass out. He also had allegedly voiced his reservations on numerous occasions that he would not appear on camera without the suit in the film. Jesse Ventura's autobiographical book also alleges Van Damme intentionally injured a stunt man. Van Damme was removed from the film and replaced by Kevin Peter Hall. Hall, standing at an imposing 7 foot 2, had just finished work as a sasquatch in Harry and the Hendersons.