Young men from a car repair shop in Loch Ness, northern Scotland, use a sea monster imitation to rescue castle residents from murder attacks. This allows them the "real" Nessie - Monster into the enclosure. A simple-minded mixture of crime thriller, slapstick and action for simple demands.
| Actor | Role |
|---|---|
 Gerd DuwnerSir Humphrey Desmond | Sir Humphrey Desmond |
 Ulli KinalzikAdam McKenzie | Adam McKenzie |
 Tobias MeisterCid McKenzie | Cid McKenzie |
 Horst NiendorfStanley Campbell | Stanley Campbell |
 Ilja RichterFernsehreporter | Fernsehreporter |
 Oliver RohrbeckDan McKenzie | Dan McKenzie |
 Christian RodeSir Charles Desmond | Sir Charles Desmond |
| DDelia BehpourVanessa 'Nessie' Campbell | Vanessa 'Nessie' Campbell |
| MMiriam BehpourVanessa 'Nessie' Campbell | Vanessa 'Nessie' Campbell |
| DDenise GorzelannyGina Campbell | Gina Campbell |
| BBritta PohlandDebbie Campbell | Debbie Campbell |
 Friedrich G. BeckhausMcKinley (voice) (uncredited) | McKinley (voice) (uncredited) |
| HHeinz G. DiesingMcKinley (uncredited) | McKinley (uncredited) |
| PPeter DöringGordon Lancaster (uncredited) | Gordon Lancaster (uncredited) |
| KKarl-Heinz GreweInspector Higgins(uncredited) | Inspector Higgins(uncredited) |
| KKatja NottkeDeborah 'Debbie' Campbell (voice) (uncredited) | Deborah 'Debbie' Campbell (voice) (uncredited) |
| KKarl SchulzBrad Tucker (uncredited) | Brad Tucker (uncredited) |