One of the 3 dwarven brothers that claims to have discovered the Wave Echo Cave. He excitedly rushed back to Neverwinter to gather supplies and gear, and hire a party of adventurers to haul the equipment to Phandalin. However on his way to Phandolin he and his hired guard, Sildar Hallwinter, were waylaid by goblins and Gundren was taken away to Cragmaw Castle on orders of a figure known as Black Spider.