Blade Runner - ROLE 1: Rick Deckard (Harrison Ford) ROLE 2: Dr. Eldon Tyrell (Joe Turkel) Blade runner Rick Deckard - recalled to duty to retire a group of rogue humanoid replicants - deduces that Dr. Tyrell's assistant, Rachael, is one. Deckard asks: How can it not know what it is? Tyrell explains that giving replicants memories makes them easier to control. Note: Yoostar scenes are often available both as single video clips and in scene packs. Please consider your purchase carefully before downloading.