Raven is the protagonist of the plot, but interestingly, he isn't the dynamic character. When he changes his loyalty, that doesn't actually constitute a change in character; he was betrayed and is only following through on his original intentions. He didn't choose not to kill the Prime Minister because he had a political change of heart. Rather, he got framed by his employer and was paid in traced bills. He isn't changing, but reacting. On the other hand, Anne does change quite drastically as she learns more.
Anne's story is a journey from innocence to experience, although she discovers in that process that what "innocence" means is up for debate. She wants Raven to be taken down, believing the narrative told to her by her husband. That changes when she becomes the victim of real injustice, realizing that she and Raven are both victims of the system. Raven elaborates this with her when she stays with him at his hiding place, telling her his life story.
In the end, they agree to work against the forces that be. Although Davis is a character, he symbolizes something much bigger than a character; he symbolizes the way that powerful people control the narrative of history. Not only does Davis lie to Raven and abuse Anne, he purposefully controls the narrative, making villains by framing people so that no one will ever suspect him. In order to attain some kind of just for themselves, these two must become pariahs; no one knows their side but them.
