Bassie finds a mysterious stone while on holiday in Greece. Three crooks are very interested in the secret the stone holds.
| Actor | Role |
|---|---|
 Bas van ToorBassie / Vlugge Japie | Bassie / Vlugge Japie |
 Aad van ToorAdriaan | Adriaan |
 Paul van GorcumDe Baron | De Baron |
| JJoop DikmansB2 | B2 |
 Danny VerbiestDanny | Danny |
| IIna van ToorRobin (voice) | Robin (voice) |