Hobgoblin
A hobgoblin or simply goblin was a mythical creature originating from Earth folklore. They were often portrayed as friendly but mischievous little men found within Human dwellings.

In 2267, after the  computer suggested that an as-yet-unidentified non-corporeal entity could assume physical form, giving the mellitus of Alpha Majoris I as an example, Hengist rebuffed the idea, calling it "Fairy tales. Ghosts and goblins." James T. Kirk then assured him it was not a myth, as he himself had once seen the mellitus change form from a gas to a solid. ()

Doctor Leonard McCoy referred to Spock as a hobgoblin in 2268. He had attempted to show Spock gratitude for saving his life in the City Arena on 892-IV. Spock, however, was preoccupied with trying to find a means of escape from their imprisonment and asked the doctor to "be brief." Frustrated, McCoy replied, "I'm trying to thank you, you pointed-eared hobgoblin!" ()

The  of the alternate reality thought of his timeline's  as a hobgoblin, as well. In 2258 of that reality, McCoy voiced his extreme displeasure with that Spock's decision to maroon  on  for mutiny. Spock showed no remorse for his actions and disagreed with McCoy's assertions, causing an infuriated McCoy to call Spock a "green-blooded hobgoblin." ()

In 2376, upon learning of Seamus's suspicions that "Katie O'Clare" was a spirit folk, Michael Sullivan jokingly asked him if Katie was a goblin. ()

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Fictional characters