Elijah Cain is the former Police Commissioner of New Radion Bay and a decorated veteran of the Pan-Pacific Conflict. A lifelong friend and ally of John “Buck” McAllister, and eventual godfather to Kayla McAllister, Cain represents the institutional counterbalance to Captain Atomic Ace’s vigilantism.

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After relocating to New Radion Bay following the war, Cain joined the police force at a time when corruption ran deep through the city’s infrastructure. He was assigned undesirable shifts and dead-end beats, often as quiet pressure to force him out. He did not leave.

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Over time, Cain’s refusal to bend earned respect from both Buck and Yoriko Takeda. ​Known for his integrity, discipline, and skepticism of overreliance on automation, Cain rose through the ranks to become New Radion Bay’s first Black Police Commissioner; this marked a significant civic milestone. While Buck became the city’s rooftop guardian, Cain operated inside the system — unsung, deliberate, and steady.​​

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Where Buck embodies physical legacy, Cain embodies civic responsibility. He does not stand on rooftops. He stands at the center of a system beginning to fracture, and refuses to let it fall quietly.

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By the events of Year Zero, Cain is one of the last high-ranking human authorities in a city increasingly patrolled by robotic enforcement units under the Police Automation Act. By Year One, he has retired from his civic duties but maintains helping Kayla McAllister in her new role as Swanblade.