Omega Hunters are characters in Extinctioners.
The Omega Hunters first appeared in Extinctioners issue 1 volume 1, but were much larger. Once Shawntae Howard had access to a real skeleton, he used its design to try to make the robot more skull like in appearance while simplifying it a bit. These new versions are human sized and the design was inspired to look more skeletal. The skeleton head motif is repeated a lot in its basic design.