The Death of Mermaid Man

Plot:
SpongeBob discovers that Mermaid Man is dead...

Characters:

 * SpongeBob
 * Patrick
 * Squidward
 * Mermaid Man
 * Barnacle Boy

Trivia

 * This episode was also was honored to Mermaid Man's voice actor.
 * In a later season, Mermaid Man was revived.