Captain Van Der Mere was the Captain of the "Flying Dutchman", whom the Marshall's once encountered entering the Mist Marsh. Captain Van Der Mere appeared before them alone aboard his ship. Although he promised to take Jack, Holly, Will and Cha-Ka back through the Dimensional gateway by which he arrived, he'd secretly planed to leave with only Holly on board. Since she reminded him of his long-lost daughter, Wilhelmina.