Sten the Ugly is a member of the Fighters Guild in Anvil. He is fairly hollow; his interactions are limited to making a remark about his nickname, unlike the rest of the guild members in Anvil, who offer varying services.
Anvil "You notice all the Nords around here? It's partly because Nords like ships and sailing. Mostly, we're sick of freezing our asses off in Skyrim."