Cast[]
- Diabolik as Prince Eric
- Eva Kent as Melody
- Inspector Ginko as Flounder
- Ralph Valmont as Scuttle
- Police Chief as Adult Flounder
- Sergeant Danek as Sebastian
- Lady Clark as Vanessa
- Prostitute as Ariel
- Rose as Carlotta
- Lorry Driver as Max
- Policewoman as Ursula
- Bank Manager as King Triton
- Valmont's Henchments as Fflotsam and Jetsam