Blaster 1 commands the Blaster alien hierarchy, marked by the number "1" on their torso, signifying high rank. This leader spearheads a technologically advanced race focused on invading resource-rich planets, stripping them bare, and leaving them desolate. Their destructive campaign ignited with the annihilation of Planet Katharos, homeworld of Maya, who fled to Earth carrying the living metal eventually forged into Ganger.

From the mobile Space Station Saucer, Blaster 1 orchestrates Earth's invasion, deploying attack saucers and directing monstrous and mechanical forces to destabilize the planet. Tactics include psychological warfare, exemplified by exploiting Kantaro's emotional vulnerability: disguising Blaster 104 as Maya to lure him into a trap, revealing strategic manipulation of human weakness.

Facing Astroganger's resistance, Blaster 1 adapts strategies. Countermeasures include deploying metal-eating Space Hounds to target Ganger's composition and overseeing the creation of a radiation-powered Fake Astroganger to sow confusion. The ultimate escalation unleashes the Space Panther, a devastating entity sent to consume Earth's remaining resources, culminating in Ganger's sacrificial destruction of both the Panther and himself.

Blaster 1's role remains fixed on conquest and resource extraction, devoid of redemption or significant personal evolution. The character embodies the Blasters' relentless drive, posing a clear existential threat to Earth.