The Mermaid's Ghost was the disguise of Jane, the assistant to Professor Ludwright. She terrorized an underwater lab before being exposed as a phony by the gang.
Appearances
Other Versions
Scooby-Doo 2: Monsters Unleashed
Scooby-Doo 2: Monsters Unleashed "Mermaid's Ghost"
The Mermaid's Ghost appeared only as a costume in the Coolsonian Criminology Museum in the Pterodactyl Ghost's attack and in the DVD special features.