Barnacle Boy is the super hero sidekick to Mermaid Man, a semi-retired super hero who starred in The Adventures of Mermaid Man and Barnacle Boy. He now lives in Shady Shoals Rest Home.The duo is idolized by SpongeBob SquarePants and Patrick Star.Barnacle Boy looks a little like a withered Popeye and is a parody of comic sidekicks Aqualad and Robin. He appears to be human and dresses as a sailor, with sailor's hat, neckerchief and black mask. He is very cranky.His super powers include Sulfur Vision, a form of heat vision. Despite their advanced age, Mermaid Man still treats his elderly sidekick like a child.He is once described as being 68 years old. His real name is Tim, as is Mermaid Man's.