Hyman Roth, as you may know, was based on the real Jewish mobster Meyer Lansky.
Hyman Roth (born Hyman Suchowsky; 1891 1960) is a fictional character and the main antagonist in The Godfather Part II and a minor character in the novel The Godfather Returns. He is a Jewish investor and a business partner of Vito Corleone, and later his son Michael Corleone. He is based on Florida-based mobster Meyer Lansky and was played by Lee Strasberg in the movie
Hyman Roth was one of the better characters.
I once knew a guy from Tampa who reminded me a whole lot of Hyman.