Mermaid Man

A fictional character in the cartoon SpongeBob SquarePants, Mermaid Man is a superhero who has aged well past his prime. He is in part a parody of comic book hero Aquaman. His sidekick is Barnacle Boy, who Mermaid Man treats like a child even though he is at least sixty years old. SpongeBob and Patrick adore the two heroes and managed to coax them out of retirement and back into television. SpongeBob has appeared with them in five different shorts — often involving a supervillain, a supergadget, or some combination of the two.

Mermaid Man's foes include Man Ray (who is an anthropomorphic manta ray, not famous photographer Man Ray), The Dirty Bubble , and the retired Atomic Flounder .

The character is voiced by Academy Award-winning actor Ernest Borgnine