Regis is a rich businessman who has moved to the island in hopes of expanding his mining company. He spends most of his time managing his company. He is interested in all ores and jewels that can be found in the mountains (with the exception of junk ore). He is very overprotective and proud of his daughter Sabrina who is an eligible bachelorette.
If you manage to unlock all of the mining sub villagers, you may see Regis' mansion expand.