Pete Armstrong, a bounty hunter allied with Falis, possesses a large stature and distinctive purple skin. Functionally a cyborg, he shares this technological classification with fellow bounty hunter Dominikov in the anime adaptation.

In combat, he demonstrates formidable hand-to-hand prowess, unleashing overwhelming force and ferocity. Yet his underlying personality reveals a sharp contrast: a gentle soul marked by consistent compassion toward allies.

His narrative culminates in sacrificial action during the series finale. He participates in activating a mechanism to halt an existential threat, knowing this triggers the removal of all lost technology—including his own cyborg components. This leads to his disappearance alongside other technological beings.