Dennis Blanston
Dennis Blanston is an antagonist in the game Mystery Case Files: 13th Skull.

Dennis is a wanted criminal alongside his wife Alice. When they heard stories about Phineas Crown's fortune, they assumed false identities and manipulated the Master Detective into solving the mystery. After discovering the submerged ships of Captain Crown's plundered fleet, the ghost of the pirate captain himself appeared and submerged the Blanstons into the swamp.