Ok, Thomas Cromwell. Thomas Cromwell was the son of nobody important (He might have made cloth, he might have owned an inn, he might have been a blacksmith, but we don’t know). Anyway, Cromwell goes to the continent to make his fortune as a mercenary. He comes to the conclusion that he’s better at paperwork than soldiering, and goes to work as a clerk for an Italian bank. While he’s there, he impresses an English cardinal and does some work for him on the side. After the cardinal dies, he goes back to England and goes to work as Cardinal Wolsey’s secretary.
He impresses Cardinal Wolsey (Cromwell impressed everyone) by being both smart and charming, and Wolsey comes to rely on him more and more, both for his advice, and also because Cromwell, who made a bunch of money in Europe, is generous in loaning Wolsey money. He becomes a lawyer and a member of Parliament, and Wolsey comes to rely on him more and more for sensitive stuff that really shouldn’t come out. At about this time, Cromwell also realizes there’s a lot of money to be made in government service, so he gets known as the man to bribe if you want access to Wolsey or to get things done. Cromwell gets treated almost like Cardinal Wolsey’s son.
Then Wolsey falls out of favor, and Cromwell has a choice to make. Should he stay loyal to Wolsey, the man who raised him from obscurity, gave him all of his titles and positions, trusted him, and was like a father to him, or should he leave Wolsey and thereby betray him at his hour of need?
After riding to court and giving the Duke of Norfolk all the dirt he had on Wolsey, he becomes a favorite of the King, who sends him back to Parliament where he serves as the king’s prime minister. Cromwell then comes up with the idea of legislation to solve the marriage problem. Why not pass a law, he says, saying that the King is the head of the English church? , and he manages to get that through parliament.So now the King can grant himself an annulment, marry Anne Bolyn, and everyone will be happy. Everyone, of course, except for Thomas More (well, and a whole lot of other people, too, actually, but no one ever wrote a play about them).
Cromwell would go on, after the events of the play, to be put in charge of the dissolution of the English monestaries, and pocket a lot of that money for himsef, and then become Earl of Essex. His fairly obvious corruption made him a lot of enemies, and so did his Lutheran sympathies, and his downfall would finally come when he would pressure the King into marrying Anne of Cleves, who Henry found hideous. This was the excuse his enemies needed, and they got him arrested for treason and he was beheaded.