|| Unofficial name
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Werewolf Barnacle Boy is an alternate universe version of Barnacle Boy, who comes from a universe where he and Mermaid Man are werewolves.
He has the same appearance as Barnacle Boy, but is covered in brown fur, and has fangs, and a werewolf nose, he also has a tail.
He appears alongside Mermaid Man as the last two alternate universe characters that SpongeBob summons to the Bikini Bottom 2 universe.
He later appears in the crowd of alternate universe characters.