Rudolf Hagen (ルドルフ・ハーゲン) is the evil mastermind who, even though contracted by the military to find the Lagu, wants it for his own ends.
He believes that Lagu is something the Earth produced to destroy the humanity that polluted it. He enjoys commanding his army, especially the bridge, and is passive but calculating. He plans to repopulate the Earth with his own progeny conceived with his Delmo staff.
Hagen was born as a genetically altered test tube baby, in the process he received superior genes. Because of that he yearns for superior women to impart the genes to his next generation. It is not clear if Neena Hagen is his biological sister or simply another test tube baby with no blood relation.