John Diggle (Earth-1638)

"I'm a cop, and a Green Lantern. As such, I'm following my superiors' orders - and trying to work out the best strategy possible. That's what a soldier does. Regardless of their personal feelings."

- - Green Lantern to Valkyrie

John Francis Stewart was a police officer of the Chicago Police Department, who, daily, struggled with his department's corruption and the crime spread through Chicago. During a routine patrol, John found the dying Rhomann Sur, a member of the Green Lantern Corps, who was critically injured by Atrocitus. Being given the power ring by Sur, Diggle was transported to Oa, where the Guardians of the Galaxy saw immense courage in him, choosing him to become a Green Lantern of Space Sector 2814.