Sylux

Sylux is a bounty hunter just like Samus Aran and a significant antagonist in the Metroid series. Not much is known about him except he has a strong hatred for Samus and the Galactic Federation.

He first appears in Metroid Prime: Hunters, along with five other bounty hunters: Kanden, Noxus, Spire, Trace, and Weavel, searching for an "ultimate power" in the Almblic cluster; some of them are more benevolent than the rest, but they are all competing for it. In the end, they all discover that Gorea, an evil being that was sealed away, tricked them, and the beast acquires their weaponry. Samus manages to save Sylux, but that doesn't change his feelings about her.