Blade Runner Tommy Lee Jones, Arnold Schwarzenegger, Al Pacino, and Burt Reynolds. One role that was not difficult to cast was Rutger Hauer as Roy Batty, the violent yet thoughtful leader of the replicants. Scott cast Hauer without having met him, based solely on Hauer's performances in Paul Verhoeven's movies Scott had seen ("Katie Tippel", "Soldier of Orange", and "Turkish Delight"). Hauer's portrayal of Batty was regarded by Philip K. Dick as "the perfect Batty – cold, Aryan, flawless". Of the many films Hauer has made, "Blade Runner" is his favorite. As he explained in a live chat in 2001, ""Blade Runner"
Themes in Blade Runner contact being a facet of body language that unconsciously demonstrates intent and emotion and this is used to great effect in "Blade Runner". The Voight-Kampff test that determines if you are human measures the emotions, specifically empathy through various biological responses such as fluctuation of the pupil and involuntary dilation of the iris. Tyrell's trifocal glasses are a reflection of his reliance on technology for his power and his myopic vision. Roy eye gouges Tyrell with his thumbs while killing him, a deeply intimate and brutal death that indicates judgement of Tyrell's soul. In some scenes, the glow in the