The books don't specify a lot of species, they name a few with no stated appearances, while only fully stating like 4 with actually appearances.

Humans - They had all kinds, some didn't even look human anymore lol.

Valorion - Silver almost mercuery colored skin, the men can shoot plasma blasts and fly while the women have the ability to shapeshift their bodies (not into creatures or anything, but as like solidify, liquefy, and turning their arms into close range weapons).


Rustov - Main bad guys, they are parasitic machines that turns their hosts basically into Robo-Zombies. they was the #1 power in the universe taking and killing everything until Jack blank cause their defeat.

and another race Calirions or something like that (gotta look at again) - they are a race who doesn't like phyiscal contact, and don't seem to have much in terms of abilities but they calculate EVERYTHING they don't do anything if they don't like the numbers basically.

i'll have the names for the ones i didn't get right later most likely. any other race they mention are more of just names and the names would give slight suggestion to what they may look like.