Character Info Edit
The Sinister Mermaid is an evil mermaid that is simular to Banshee from Scooby-Doo! Abracadabra-Doo. She attacked Katy Perry and Conway Recording Studios when Katy wasmaking her mermaid-themed music video, But she was really Shaggy's ex-girlfriend Rachel. Rachel used the costume to get revenge on Shaggy and Scooby (and the rest of the gang at that matter) for getting her boyfriend in jail.
Sinister Mermaid has the beautiful form of Banshee but has an orange mermaid tail and pearls.