In post-Civil War Kentucky, young David Burnic becomes the unexpected heir to the family secret, a map leading to buried treasure on the Florida isle of Matecumbe.
| Actor | Role |
|---|---|
 Robert FoxworthJim | Jim |
 Joan HackettLauriette | Lauriette |
 Peter UstinovDr. Snodgrass | Dr. Snodgrass |
 Vic MorrowSpangler | Spangler |
 Johnny DoranDavie | Davie |
| BBilly 'Pop' AtmoreThad | Thad |
 Jane WyattAunt Effie | Aunt Effie |
 Virginia VincentAunt Lou | Aunt Lou |
 Robert DoQuiBen | Ben |
 Don KnightSkaggs | Skaggs |
 Mills WatsonCatrell | Catrell |
 Dub TaylorSheriff Forbes | Sheriff Forbes |
 Valentin de VargasCharlie | Charlie |
 Dick Van PattenThe Gambler | The Gambler |
 George LindseyCoahoma Sheriff | Coahoma Sheriff |
 Warde DonovanSheriff Coffey | Sheriff Coffey |
 Jonathan DalyPaxton Farrow | Paxton Farrow |
 John SteadmanGuide | Guide |
 Rex HolmanInformant | Informant |
 Clint RitchieFlatboat Leader | Flatboat Leader |
 Ken RenardCustomer | Customer |
 Brion JamesRoustabout | Roustabout |