Gray Fly is a minor antagonist in Part III: Stardust Crusaders. He's an old man with a distinctive horseshoe-shaped hairline and a stag beetle tattoo on his tongue. Despite his ordinary appearance at first glance, he's genuinely sadistic—he kills for entertainment rather than necessity. His Stand lets him cut off his victims' tongues, and he's made a habit of murdering people and robbing them afterward. Kakyoin figures out that Dio didn't need to control him with a spore like he did with other Stand users, which suggests Gray Fly was simply hired to take out the Joestar group rather than being forcibly enslaved.
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