Full Name: Unknown
Impactor Designation: Radia
Weapons: Mega Axe

Impactor Radia, who came to earth along with Lucia, is a hot-headed and fierce fighter who assumes the guise of a blond haired man in silvery attire. He has romantic feelings for Lucia, though having ill feelings towards Logia in spite of his forced-respect for him. In his silver-armored fighting form, Radia uses the enormous Mega Axe in his armor. He presented an interest in the Gransazers, deeming them too weak to stand a chance against him in one-on-one fights. But Gorbion's interference forces Radia to escape, swearing a vendetta on Gorbion since. But when Lucia is wounded, Radia decides to complete the mission on his own. He fought Gorbion and Pisces and enlarged into a giant. Gans arrived and the gathered Water Tribe awoke Leviathan. He refused to retreat from the fight and is killed by Leviathan, proving his pride was his weakness. Appears in Episodes 13-15.