The Moth is one of Mermaid Man's arch-nemeses whom he has been tracking down for 57 years. He first appears in the episode "Night Light" and is voiced by Mark Hamill.
He is muscular, has a light brown body, a pale-green head, dark orange antennae, pale-green hands, giant light yellow wings, and red eyes. He wears a pale-green speedo.
The Moth is an underwater, small, miniature insect who wears a typical superhero suit but is a villainous bug.
Role in episode
He is attracted to all of the light given off at SpongeBob's house, especially the lighthouse. SpongeBob traps him inside said lighthouse, but he escapes by carrying it inside the cage, and he flies away.