Black Vulture

Origin
Professor De Groot was a colleague of Professor Masterson, aka The American Crusader. He was hypnotized by the Nazi mastermind known as Mr. Eyes, into sabotaging new American technologies being developed at the university. In order to keep his identity secret De Groot wore a mask and became the fearsome Black Vulture, who inspired the loyalty of his gang.

The Black Vulture was not physically powerful, but usually carried a gun, which he was more than happy to use. He was also highly intelligent and willing to die for the Nazi cause.