Barnacle Man!
— Barnacle Man after Johnny Elaine calls him Barnacle Boy, "Mermaid Man and Barnacle Boy V"

Barnacle Man is an alter-ego/version of Barnacle Boy seen only in the episode "Mermaid Man and Barnacle Boy V."


Barnacle Man is basically Barnacle Boy dressed in a vampire-style cloak with a red shirt that has a skull-and-crossbones on it.

Role in episode

Barnacle Man is formed when Barnacle Boy joins the dark side after getting fed up with Mermaid Man still treating him like a little kid.