Kryten is the android mechanoid from Red Dwarf, the long-running British science-fiction sitcom about the last human alive aboard a mining spaceship, and his formal politeness is a running part of the character. That contrast is why the insult has lasted beyond the show: a courteous robot delivering a blunt moral judgement is instantly recognisable even without the episode context. Online, the line is shared as a short reaction clip for calling out strange or inappropriate behaviour, keeping Kryten's deadpan tone as the joke.
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Kryten from Red Dwarf delivers a deadpan rebuke, calling someone a sick person in this clip. It is used to call out bizarre behaviour in reaction videos.
This is a short spoken line from Red Dwarf in which Kryten, the polite android mechanoid, turns his usual courtesy into a blunt accusation. His voice is calm, precise and faintly exasperated rather than shouting, which makes the insult land harder because it sounds like a formal judgement rather than a joke. The phrase builds as he repeats the word sick, giving editors a natural rise to cut on. For a viewer, it feels like being caught out by the most well-mannered character in the room, a mix of embarrassment and comedy that works best when the behaviour on screen is already clearly absurd.
