Is Deckard a Replicant? The question has been asked since Blade Runner was first released in 1982.
- With the 2007 release of the Final Cut, some say the argument can be finally put to rest. Ridley Scott, with full control of the media, has put/left in the unicorn dream sequence as Deckard is sitting at the piano daydreaming. Thus, at the end of the movie, Deckard's knowing nod when he picks up Gaff's origami unicorn and recollection of Gaff's last comment concerning Rachael signifies Deckard's own realization of the facts.
- One interesting point that comes up is what Bryant really knows. Does Gaff know that Deckard is a replicant while Bryant does not? Or is it okay with Bryant that a replicant retirer is a replicant himself?
Ridley Scott has mentioned this matter in several interviews. BBC News ran a story about this in 2000, where he concludes that Deckard is a replicant. 
Also in a interview Ridley Scott did in Wired magazine in 2007, he explained this matter:
Wired: It was never on paper that Deckard is a replicant.
Scott: It was, actually. That's the whole point of Gaff, the guy who makes origami and leaves little matchstick figures around. He doesn't like Deckard, and we don't really know why. If you take for granted for a moment that, let's say, Deckard is a Nexus 7, he probably has an unknown life span and therefore is starting to get awfully human. Gaff, at the very end, leaves an origami, which is a piece of silver paper you might find in a cigarette packet, and it's a unicorn. Now, the unicorn in Deckard's daydream tells me that Deckard wouldn't normally talk about such a thing to anyone. If Gaff knew about that, it's Gaff's message to say, "I've read your file, mate." That relates to Deckard's first speech to Rachael when he says, "That's not your imagination, that's Tyrell's niece's daydream." And he describes a little spider on a bush outside the window. The spider is an implanted piece of imagination. And therefore Deckard, too, has imagination and even history implanted in his head.
Wired: Harrison Ford is on record saying Deckard is not a replicant.
Scott: Yeah, but that was, like, 20 years ago. He's given up now. He said, "OK, mate. You win! Anything! Just put it to rest."