In King Lear by William Shakespeare, Edmund, the bastard son of Gloucester, goes through many character shifts throughout the story. He seems to have his own story line throughout the play, which I find very interesting.
In the opening scenes of the play, Gloucester can be seen talking to Kent and mentions how he loves both of his sons equally despite one of them being a bastard. While telling Kent this, he talks about how embarrassed he used to be when he brought Edmund up because of their situation. Despite saying he loves his sons equally, he seems to favor one over the other which sets Edmund up to become a villain.
I think that Edmund had a valid reason for doing what he did, I probably would not have done the same but if your father makes it so clear to you as well as strangers about how you were conceived and lies about how much he loves you, it messes you up in the head. Most villains in films have troubled childhoods or reasons for doing what they did so I think that Edmund could paint it as revenge and therefore morally okay. Act II and III are where his evil peaks. He runs his brother out of the country after staging a fight and deceiving their father. He also sells his father out for treason to Regan and Cornwall, leading to him being tortured. I think that the fact that he got away with so many evil things back to back is interesting because you would think that people kept a closer eye on their servants.
Edgar is painted out to be the “good” son by Gloucester to other people and Edmund the “bad” son. I think it is compelling how the Edgar-Edmund-Gloucester trope mirrors the Lear-Goneril-Regan-Cordelia trope about having good or innocent children and bad or evil children. Although for different reasons, both fathers favor one child and paint the other out to be evil, Edmund is really evil but Gloucester definitely did not love him as much as Edgar.