Trivia: Joanna Cassidy got the role of Zhora after revealing she had experience as a snake handler and, in fact, owned a large Burmese python (that she'd lovingly named 'Darling') which could be used for Zhora's scenes at Taffy Lewis's bar.
Trivia: M. Emmet Walsh (Bryant) came up with the idea of Bryant randomly pulling a bottle of whiskey out of his desk and pouring shots while informing Deckard about the escaped replicants. According to his own words, he imagined Bryant as "a sociopath whose liver was barely functioning after years of abuse, so he now took pleasure in making others do the things he could no longer do, like drinking on the job."
Trivia: There are two deleted scenes where Deckard goes to the hospital and speaks with Holden, who is now on life support after being shot by Leon at the start of the film. These scenes also reveal that Bryant and Gaff are monitoring Deckard's movements very closely, hinting at how Gaff always manages to show up right after Deckard retires one of the replicants.
Trivia: Originally, Tyrell's death scene had a twist: Baty was going to rip open his head, revealing it was full of wires, gears, and synthetic parts. Sebastian would then lead Baty to another room where the real Tyrell would be lying in state, having died years ago and leaving a replicant of himself in charge of his business. This would also explain why Tyrell asked Deckard to VK Rachel instead of him, and also why he was so interested in knowing if the VK test could detect custom-made replicants.
Trivia: The square-shaped whiskey glasses Deckard is shown drinking from are Arnolfo Di Cambio brand, Cibi style double old fashioneds. They've since reappeared in multiple other sci-fi universes (such as Star Trek and the Battlestar Galactica reboot) due to their unique, futuristic design. They're even still manufactured for sale to this day.
Answer: The two most notable hints are as follows. The first (which is only in the Director's Cut) is that after Deckard dreams of a unicorn, Graf makes an origami unicorn and leaves it at Deckard's apartment. Some people interpret this as suggesting that they're aware of the memories that have been given to Deckard to prevent him realising his true nature. The second hint is that replicant eyes glow in certain lights - at one point in the film, Deckard's eyes can be seen glowing in the same fashion. Ridley Scott has stated on several occasions that, as far as he's concerned, Deckard is a replicant, but he does concede that they deliberately left it as somewhat ambiguous - the viewer should decide for themselves.
Tailkinker ★