Always Chaotic Evil: Averted. Partially, I suppose, because it’s hard to get this degree of uniformity out of a species without stripping out volition, and non-sophonts can’t be evil. They just are.
But, by and large, every species and polity, even the ones that are generally thought of as villainous and unpleasant, has at least a few members and/or the potential to be decent chaps. The skrandar – with their extreme xenophobia – are probably the closest counterexample, and the tennoa with their obligate utilitarianism sometimes behave in manners that the rest of the Worlds find very immoral indeed, but no-one plays it straight.