1) Good: MacDuff, Malcom, Ross
Evil:MacBeth, The murderers, the witches
2) Macduff: is a good character because is creating an army to destroy MacBeth and his bad intentions.
Malcom: He escaped after his father’s death and he didnt kill his father.
Ross: He is a good character because alert Macduff that his wife and son where killed by murders sent by Macbeth.
Macbeth: he appear as good character until he decides to kill the king. Later he became more evil and thirst for power and start killing many more people.
Murderers: they kill Macbeth wife and son.
Witches: at first they start as a neutral character and later on they help MacBeth achieve his goals.
3) The current allegiances are completely different and generally they change completly from the previous ones. MacBeth became a traitor and McDuff leave Macbeth and became a traitor too. The witches start helping MacBeth to destroy MacDuff because represent a threat to the whole plan.
4) The only way MacBeth can win his friends’ support is to confess his crimes and to become responsable for his previous acts during his ambition and thirst for power.
5) I think that the character that is the most similar to MacBeth personality is Lord Voldemort. Both are thirst for power and are looking for followers who can help them achieve their dark plans. Both where from the good side before the power arrive to them. Both where very skillful in their abilities and knowledge. They present a inmense threat to the whole community and occupied a place of respect in the society. The present ambition and desires to destroy every obstacle that prevents them to complete their goals and to get what they want.