George Momberg (May 13, 1934 – August 24, 1995), better known by the ring name Killer Karl Krupp, was a Dutch-born professional wrestler famous during the 1970s and early 1980s. Early life George Momberg was born in the Netherlands and was a child during the Nazi occupation of his home country. Sometime after the war, he emigrated to North America. Professional wrestling career He made his debut as a professional wrestler in 1957 as Dutch Momberg and was not particularly memorable. Sometime around 1971, he changed his name to Mad Dog Momberg. In 1972, he finally hit upon the gimmick that would make him a star, the character of the 'evil German,' Killer Karl Krupp. The German heel gimmick had been around a good twenty years by this time, first popularized by Hans Schmidt and carried further by later stars, such as Fritz von Erich. A late entry into the field, Killer Karl Krupp was among the most wildly over-the-top of them all. With eyes bulging, head shaved and a short black beard framing a leering grin, Krupp was the very image of a wildly cartoonish, yet frightening wrestling villain. He accessorized for the part with monocle, riding crop, heavy black boots and black ring cape, and delivered ranting promos in an affected German accent rife with mangled pronunciations. Utilizing other familiar staples of the German heel gimmick, Krupp goose-stepped to the ring, threw stiff-arm salutes, and used an Iron Claw hold (the 'Eye Claw') as his finishing move. What was unknown to the public at the time was that Momberg hated the Nazis, who had occupied his homeland, and he did the over-the-top gimmick as a way of mocking them, Hogan's Heroes-style. Despite these theatrics, Krupp was a convincing brawler in the ring. Remembered for often completely demolishing his opponents, he relished inflicting pain on them, with little regard for whether or not he was disqualified in the process of doing so. On June 10, 1972, Krupp won his first of many assorted titles, defeating Leo Burke for the ESA's IW North American Heavyweight Championship. Early the next year he went to Japan, where he had many of his early successes, co-holding the NWA International Tag Team Championship twice between February and April 1973 (once with Johnny Valentine and once each with fellow 'evil Germans', Fritz von Erich and replacement partner Karl von Steiger). He also reached the final