Gree

Gree was the leader of a tribe of underground trolls. He wore a tattered scarf once owned by an elf. Although they were used by the remaining Horde in Khaz Modan as roaming guards, they would once in awhile capture and eat a single orc if given the chance. He helped capture Vereesa Windrunner and Falstad Dragonreaver, but died in a battle against hill dwarves — the rescuers of Vereesa and Falstad. Vereesa commented that Gree's tribe were the lowest kind of trolls, wandering dark underground tunnels.

Trolls in Gree's command

 * Shnel
 * Vorsh
 * Hulg

Speculation
While the trolls speak about having worked with the Horde, the type of troll that they are is never specified. While it would be common to assume that they were forest trolls, given the time period and Vereesa's mention of the Troll Wars upon seeing them, Jon-Jon Jellyneck and his tribe are local jungle trolls to the area who also work with the Horde during the Cataclysm; meaning that they may have been part of this tribe.