Gimp

Origin
The Gimp was a crime boss who lost his right leg, at the knee, and had it replaced with a metal prosthetic with a knife on the end. He could stab a man in the chest with a kicking motion. He also carried conventional weapons such as a Tommy Gun. He was a rival to the crime boss known as The Beast and he was a recurring enemy of The Eagle.

Golden Age Appearances
Weird Comics #11, 13-15