Dmitri Smerdyakov, also known as The Chameleon, was a former carnival freak who was a master of disguise.
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History
Smerdyakov and his half-brother Kraven were hired and joined the Goblin's Enforcers, in which he helped in concealing Osborn's goblin-like visage behind a mask. The Goblin had the Chameleon impersonat J. Jonah Jameson in order to eliminate Ben Urich and set a trap for Spider-Man. He was killed by Felicia Hardy, who had witnessed him murdering Urich.