Dragon Master (created by Glenn Thain) appeared in the first Enemies collection. His basics were already in place: a Chinese super-spy who'd fled to the US after he became a political liability. In America, given a choice between poverty and crime, he chose crime, seeking vengeance on the government that spurned him.
For Classic Enemies, Scott Bennie took this basic origin story and used current events to good effect. After he fled China, Dragon Master tried to live a life of simple seclusion until he learned of the events at Tienanmen Square. His criminal network is now politically motivated, using ill-gotten gains to support subversion against his homeland.
Stats-wise, Dragon Master is a solid comic book martial artist. He's not fancy, he doesn't have a lot of weird abilities (North Americans being mostly unaware of the amazing goings on in Hong Kong Cinema) and, without his Followers and Bases would come in at just a bit over 250 points. At 75 points, his followers aren't a serious threat to a superhero individually, but in numbers (he has over 100), they can pose a serious problem.
And Black Dragon? I've used him as a PC and NPC in multiple campaigns. Over the years, his background became a bit shadier. When my Tuesday crew tried some 6th Edition, I even revived him one more time. He was 70s-tastic.