Dr. Dempsey, an American scientist, is sent to Scotland to disprove the existence of the Loch Ness Monster. He is shocked when Laura, an inn-keeper, introduces him to a small family of Nessie-dinosaurs.
| Actor | Role |
|---|---|
 Ted DansonDr. Dempsey | Dr. Dempsey |
 Joely RichardsonLaura | Laura |
 Ian HolmWater Bailiff | Water Bailiff |
| KKirsty GrahamIsabel | Isabel |
 James FrainAdrian Foote | Adrian Foote |
 Keith AllenGordon Shoals | Gordon Shoals |
 Nick BrimbleAndy Maclean | Andy Maclean |
 Wolf KahlerDr Muller | Dr Muller |
| JJohn DairMacleash | Macleash |
| PPhilip O'BrienDr Abernathy | Dr Abernathy |
| DDebora WestonDr Hunter | Dr Hunter |
 Roger SlomanNorwegian | Norwegian |
 Julian CurryEnglishman | Englishman |
 Brian PettiferRepairman | Repairman |
 John SavidentDr Binns | Dr Binns |
 Richard VernonAged Professor | Aged Professor |
 Harris YulinDr Mercer | Dr Mercer |