Slagg is a gopher and first mate to the Viking captain Skoglar, a treasure seeking villain of the Fallen-peak highlands. His goal is to round up slaves, and find someone who can decipher the map that leads to the treasure they want to find. He is greedy, yet somewhat charismatic, but with a hot temper about him, he has an air that tends to put fear into other creatures, as they think he might snap and kill someone.