A two-headed troll's most notable difference from other trolls is that it possesses two heads instead of one. Two-headed trolls also walk upright instead of adopting the hunched-over posture of other troll breeds, a holdover from their ettin ancestors.
A two-headed troll's heads possess independent minds and personalities. Each head has control of the arm on its side, and the two share control of the legs. Two-headed trolls are carnivores, and enjoy eating creatures small enough to consume in one bite, which they refer to as "nibbles".