Gatatog Uvenk

Gatagog Uvenk is a minor Krogan villain from ''Mass Effect 2. ''He is voiced by Michael Dorn.

History
Gatagog Uvenk first appears as a member of Clan Uvenk, which have reluctantly thrown their lot in with Clan Urdnot (led by other Urdnot Wrex or Urdnot Wreav depending on Shepard's actions in the first game). Uvenk is shown to be contemptuous of humans and is in fact something of a Krogan supremacist. He disagrees with Wrex's way of doing things if Wrex is in charge, which prompts Wrex to remind him of his place via a headbutt.

When Grunt shows up and is given permission to undergo a Rite of Passage, Uvenk is outraged, viewing Grunt as a perversion of science and Krogan biology that has no business partaking in Krogan traditions. However, Uvenk's protests fall on deaf ears, and Shepard can also choose to shut Uvenk up (which causes the watching Krogan Shaman to take an immediate liking to Shepard) and storms off. Though forbidden to interfere in the Rite of Passage, Uvenk shows up after Grunt has successfully completed it. Realizing now that Grunt is potentially valuable to him, Uvenk attempts to convince Grunt to join him, but Grunt rightly recognizes him as nothing more than a power-hungry hypocrite. Uvenk and his accompanying goons are killed in the ensuing firefight.

Trivia

 * Uvenk wears armor made by a Geth manufacturer
 * He will not charge Shepard in a fight like most other Krogan do