Personality: Ruthless, anguished Gender: Male Affiliation: Nazi Species: Bio-tank Size: Height 11m, Length 36m, Width 11m Armament: Dual 380mm main guns, two 500mm mortars, 9-tube missile launcher, front ramming device Notes: Originally betrayed the Nazis, but his memories were distorted by a serum, leading him back to the Nazi faction. He agonizes over his true identity.

Size: Height 8m, Length 20m, Width 6m Species: Bio-tank Gender: Female Affiliation: United Kingdom Personality: Clever strategist, cold-headed Armament: 200mm main gun, 7.62mm machine gun Features: She was close enough to Ratte to have married him, but they now fight because Ratte's distorted memories led to his betrayal. Though cold-headed, she loses her temper easily when Ratte is mentioned. She is aware that Ratte's memories were distorted by a certain drug.

Species: Robot tank Gender: Male Affiliation: United Kingdom Personality: Cold-headed, helpful to allies Size: Height 12m, Length 35m, Width 8m Armament: 450mm main gun, 8 multi-turrets on two levels, 17 total guns Features: Built using the captured hull of the Soviet tank KV 45.

Height: 9m, Length 21m, Width 6m Species: Bio-tank Personality: Cold, realistic Affiliation: Nazi Armament: 210mm main gun, 105mm and 85mm secondary guns Features: A bio-tank that looks so mechanical it is indistinguishable from a robot tank.

Gender: Male Species: Bio-tank Personality: Arrogant Affiliation: Italy Size: Height 8m, Length 18m, Width 6m Armament: 250mm main gun, flamethrower turret, 8-tube small missile launcher Features: Hates Ratte.

Species: Bio-tank Affiliation: United Kingdom Gender: Male Personality: Cold-headed, loyal to comrades, vengeful Size: Height 4m, Length 8m, Width 3m Armament: 183mm main gun, 57mm secondary gun Features: Vowed revenge after the death of his younger brother.

Nickname: Monster Inventor Gender: Male Species: Bio-tank Personality: Vengeful Affiliation: Nazi Size: Height 11m, Length 25m, Width 8m Armament: 170mm main gun, 406mm secondary gun, 9-tube missile launcher Features: After his son was killed by Matilda, he transformed himself into a giant tank and gained an extreme desire for revenge. He is the one who injected the serum into Ratte.

Species: Robot tank Personality: Cowardly, timid Affiliation: Demon Size: Height 11m, Length 36m, Width 13m Armament: 608mm main gun, 8 multi-turrets on two levels, 200mm mortar, ramming shield, 18 total guns Features: Despite his ferocious appearance, he hates fighting. He fears and is hostile toward Leviathan.

Gender: Male Species: Demon Rank: Lord Personality: Cruel, intelligent, arrogant Size: Height 9m, Width 14m, Length 25m Armament: 400mm main gun, four 100mm secondary guns Abilities: Telekinesis, portal generation for dimensional travel (mostly between Hell and reality), Charged Shot (magically charging a shell to fire it with overwhelming power) Features: The demons are allied with the Nazis. To prevent KV 404 from betraying him, he can kill KV 404 remotely. He actively supports Ratte and overlooks his mistakes to prevent Ratte's memories from returning and to increase his loyalty. Notes: Most call Leviathan "Lord" rather than by name (KV 404 calls him Leviathan because he does not follow him).