蓝甲虫The Blue Beetle (Golden Age, Dan Garret, police officer)

Dan Garret was a police officer in the 1940s. A pharmacist named Doctor Franz provided Garret with his two greatest inventions, a bulletproof chainmail uniform and Vitamin 2X, which allowed Garret to become the crimefighter named The Blue Beetle. Later in his career, the Blue Beetle was assisted by a sidekick named Sparky.