Colonel Kurtz serves as the commanding officer of a mobile fortress called the Sphinx, representing the Regular Army forces on the war-torn planet of Jerra. His background is that of a military leader entrenched in a brutal planetary conflict between the government forces and the separatist Nexrum Army, a war that has pushed society to its breaking point. This environment defines him as a professional soldier burdened with immense responsibility, primarily the protection of his troops and the execution of a high-stakes mission to deactivate a doomsday device known as the Death Force program, which automatically activates following the assassination of the planet's president.

Kurtz is characterized by a pragmatic and cautious personality, contrasting sharply with the chaos around him. While he is dedicated to his duty, his demeanor reveals a deep-seated distrust and fear of uncontrollable variables, specifically anything that falls outside the bounds of military order. This is most evident in his reaction to M.D. Geist, a genetically engineered super-soldier whose violence and unpredictability threaten the regimented structure Kurtz represents. Despite Geist aiding his forces and saving the Sphinx from an attack, Kurtz refuses to fully accept him, seeing the renegade soldier as a greater long-term threat than the enemy forces they face.

The colonels primary motivation is to prevent the activation of the Death Force, a robotic weapon of mass destruction capable of eradicating all life on the planet. This mission drives the entire narrative of his involvement, leading his squadron on a dangerous infiltration of the enemy-controlled Brain Palace fortress. His role in the story is that of the immediate antagonist to Geist, representing the voice of reason and military discipline that seeks to control or eliminate the protagonist. He is the commander who loses his entire unit during the operation, leaving him as the final obstacle between Geist and the doomsday devices control room.

His most significant key relationship is with M.D. Geist. This relationship is defined by mutual distrust, culminating in direct conflict. Kurtz sees Geist not as a savior but as a "dangerous menace" and a "unpredictable danger" that must be neutralized for the greater good. Acting on this conviction, he attempts to kill Geist by unleashing a specialized combat android on him. This decision marks his last stand, as Geist overpowers and kills the colonel in the ensuing battle. His relationship with his own subordinates is implied to be one of command and shared sacrifice, as he laments their deaths during the mission.

Development for Colonel Kurtz is relatively static but decisive. He remains steadfast in his military logic and his opposition to Geist from the beginning of their encounter to his death. His arc concludes not with a change of heart, but with the validation of his fears. By attempting to execute Geist, he forces a final confrontation that leads to his own demise and, crucially, leaves Geist alone with the power to stop the apocalypse. In a final act of defiance against Kurtzs wishes, Geist chooses to unleash the Death Force, proving that the colonels distrust of the super-soldier was entirely justified.

In terms of notable abilities, Colonel Kurtz does not possess superhuman physical power or combat prowess like Geist. Instead, his strengths lie in strategy, command, and technological operation. He is depicted as capable of successfully leading a special forces infiltration mission deep into enemy territory. He is also shown operating the sophisticated computer systems of the Brain Palace, demonstrating knowledge of how to interface with the doomsday device`s controls. His ultimate tactical ability is the deployment of a powerful security android designed to eliminate high-value targets, showcasing his reliance on military technology and planning to overcome threats he cannot match in personal combat.