He is a "Blade Runner", a special member of the Los Angeles Police Department whose job is to hunt and "retire" replicants which have been declared illegal on Earth.
- The Alcoholic: It's much faster to count the scenes in which Deckard isn't drinking.
- Anti-Hero: Deckard isn't the most likeable of guys, and his job of executing the Ambiguously Human replicants is ambiguously moral.
- Artificial Human: Maybe. Still widely discussed even today.
- Born Lucky: Luck is what ultimately saves him from the replicants: he would have been killed by Zhora had witnesses not stepped in, by Leon had Rachel not intervened, and Roy had it not been for his enlightenment.
- Cool Guns: Which is both futuristically devastating and old-school looking.
- Defective Detective: Not only is he plagued with self-loathing and doubt, he becomes increasingly unsure that his role as Blade Runner is ethical, and eventually becomes a fugitive with Rachael.
- Hardboiled Detective: He is more of a deconstruction, being an Anti-Hero with some serious psychological conflicts.
- Perma Stubble: He is a noirish Anti-Hero, after all—it's basically part of the uniform. The film takes place over the course of several nights, and he doesn't stop to shave.
- Pragmatic Hero: His methods are questionable, but he takes no pleasure in killing and feels genuine remorse for his targets.
Rachael is the latest experiment of Eldon Tyrell. Tyrell believes that as the replicants have such a limited lifespan, they have little time to develop control of their emotions, causing difficulty managing them. He believes implanting them with memories would create a cushion which would allow for emotional development, and make them more controllable. Rachael has the implanted memories of Tyrell's niece, and she is led to believe that she is human. It is not revealed in the film how long she has been living, but Tyrell admits that he thinks she is beginning to suspect the truth of her existence. When Rachael learns the truth, she is ignored by Tyrell. In desperation, she turns to Deckard, who has been told by Captain Bryant to retire her. He eventually falls in love with her.
- Ridiculously Human Robots: Rachael takes this trope pretty far: she's a Replicant who thinks she is human. When Deckard tests the machine on Rachael, it takes over one hundred questions for him to determine she is a Replicant (it takes only twenty or thirty, normally).
Roy Batty is the leader of the renegade Nexus-6 replicants and the main antagonist of the film. He is highly intelligent, fast, and skilled at combat, and yet still learning how to deal with developing emotions. With an A Physical Level (superhuman strength & endurance) and an A Mental Level (genius-level intellect), he is probably the most dangerous of all the fugitive replicants. He is a combat model, used off-world for military service. He and five other replicants come to Earth, hoping to find a way to lengthen their life span.
- Anti-Villain: He's a violent murderer, but in some regards he's an escaped slave who just wants to live his life in peace.
She is a "basic pleasure model". She is the girlfriend of Roy Batty. At an A Physical Level, she is shown to have superhuman endurance (as in the scene where she grabs a boiling egg with her bare hand without harm). Her B Mental Level puts her at a lower intellectual level than Roy.
Played by: Brion James
Leon Kowalski is a replicant who came to Earth with five others looking to extend their lives. He has an A physical level, which enables him to have superhuman strength and endurance (according to the Final Cut he was used as a 180 kg/400 lb nuclear-head loader in the outer space colonies as well as a front-line soldier). Leon is classified mental level C. He doesn't have the speed of thought that Roy does when it comes to solving problems.
Dr. Eldon Tyrell
Played by: Joe Turkel
Dr. Eldon Tyrell is the genius who has built up the large
Tyrell Corporation. He is the creator of the Replicants.
- Eye Scream: In combination with this, he gets his head crushed by Roy.
- Four Eyes, Zero Soul: Tyrell wears thick glasses and is responsible for exploiting the life he creates with forced servitude and short lifespans.
- Smart People Play Chess: Has an ogoing game with J.F. Sebastian.
- Too Dumb to Live: When your angry, vengeful creation is confronting you and demanding you perform a medical procedure on him, the correct answer is not to explain why that procedure would be fatal, it's to perform it anyway. Possibly justified in that his idolization of Roy as his ultimate creation may have been stronger than his self-preservation.
Played by: William Sanderson
A genetic designer working for Tyrell. He is not allowed to emigrate off-world .
Played by: M Emmet Walsh
Deckard's former supervisor from his time as a blade runner, who calls Rick in for One Last Job
Played by: Edward James Olmos
An enigmatic officer in the L.A. police department who detains Deckard, and fills the role of his 'partner' of sorts on Deckard's quest for the Nexus-Six replicants.
- Bowties Are Cool: You know, for a cop, his preferred style of dress is much more evocative of some sort of high-end drug dealer.
- Deadpan Snarker: While he doesn't speak a whole lot, a few scenes do have Gaff seem like he is silently mocking Deckard. It could just be he doesn't like him all that much, but it's really hard to say given how little we see or know about him.
- Enigmatic Minion: Again, Gaff doesn't talk that much, and he doesn't seem particularly enthusiastic about helping Deckard on his mission. Given the nature of this movie, this has lead to a great deal of Wild Mass Guessing as to what role exactly he plays in the movie's narrative.
- The Quiet One: What is not spoken in LA's futuristic 'Cityspeak' dialect (which Olmos has confirmed to be an offshoot of Hungarian mixed with several other languages, mainly born of cultural convergence within the future city of L.A.) is spoken through his origami figurines. And those open up a whole bunch of Epileptic Trees all by themselves...
- Secret Keeper: Whatever else is debatable, Gaff is strongly implied to know about Rachael, but for some reason, lets her and Deckard escape together. It could have been a moment of compassion on Gaff's part, since he knows Rachael will not live past her expiration date... or it could be his motive is more sinister, or quite simply he knows something we don't.
- Sharp-Dressed Man: As priorly noted. Bonus points for wearing a flower on his jacket in one scene.