Rundas was born on Phrygis, a moon of planet Bes III known mainly for ice mining. Phrygisians are commonly able to manipulate and generate ice; however, Rundas is one of very few to use this ability as a hunter. Rundas was terminated approximately one month after his corruption during the Space Pirate attack on Norion. He was immediately killed upon being impaled with a spire of ice.

He enjoys hunting to the point that he keeps trophies of all targets he has successfully captured or killed in his career. He is also considered extremely proud, cocky, and arrogant, believing himself to be unmatched in his field. However, he seems to have a strong sense of justice. His arrogant demeanor leads him to mainly seek solo missions and rarely works with others. Despite this, he seems to feel an uncharacteristic sense of camaraderie toward Samus Aran.
His personality differs depending on the situation; he can be arrogant in front of others, but is quiet and dutiful in following commands when working alone