Trevon Charles has Magnetic Skin. He uses this power to fight crime as Magnet Man. He's an average unarmed conbatant and by no means invincible, but his heart of gold and his witty humor tend to disarm common criminals.
Officer Amos Hughes uses his Ammunition Generation to take the law into his own hands as Ammo when he's off duty. He's a master weapons designer for people with or without powers.
Xia An, codenamed Morph has an Amorphous Physiology which he uses to smother serial killers. He's a serial killer himself, but that never stopped him from doing what he thought was right.
Job Baird aka Ley Line Man has Ley Line Manipulation. He fights planetary-level mystical threats.