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The brand of cigarettes that Mrs. Martinez smokes, Morley, is not a real brand, but it has been a popular fake cigarette brand in TV shows and movies since 1960, when it appeared in Alfred Hitchcock's movie Psicosis (1960). Perhaps its best-known use was as the brand preferred by the "Cigarette Smoking Man" on Los expedientes secretos X (1993).

Throughout the series whenever someone picks up a gun or is walking while carrying one, whether it is a revolver, semi-automatic pistol, rifle, shotgun, assault rifle or submachine gun, the guns make very noticeable clicking, clunking, and rattling sounds. A properly functioning gun does not make noises every time it is picked up, moved or jostled; if a gun is making noises like that when moved, then an internal component is broken and something is seriously wrong with it. The only kind of noises a gun might make when moving is if it has a sling, the point where it attaches might rattle a tiny bit, and rifles like the M16, M4 and AR-15 have a small weight in the buffer tube that moves a tiny bit; but these noises are very quiet and could only be heard in a very quiet environment, certainly not over the sound of people walking & talking.

Season 2 episode "The Battle for Red Hook" has an extended animated opening credit sequence.

Featured in Late Night with Seth Meyers: Jeffrey Tambor/Corey Stoll/Hailee Steinfeld/Nate Morton (2016)