Kessick

From Memory Alpha, the free Star Trek reference.

Kessick was a Xindi-Primate slave in a trellium mine in the Delphic Expanse.

Captain Jonathan Archer bribed the mine's foreman to see Kessick in hope of learning the location of the Xindi homeworld. One of Kessick's fingers was cut off to give to Archer as proof of Kessick's Xindi origin. Archer asked Kessick for the coordinates to the Xindi homeworld, but Kessick refused to give them to him. In exchange for the information, he wants Archer to help him escape. After the foreman intends to keep Archer on the mine as forced labor, Kessick offers to get Archer and Trip Tucker to their shuttlepod on the surface, but they must take him with them, which they agree to. Unfortunately Kessick was killed in the escape. He managed to hold on to life long enough to give Archer the coordinates of the Xindi homeworld. (ENT: "The Xindi")

Kessick was played by actor Richard Lineback. His name was not spoken in dialog.