I would like to focus on evil characters in Shakespeare’s plays. Iago in Othello and Edmond in King Lear are both driven by vengeance. What is the source of their anger . in the former it is color of his skin and in the latter it is his out of wedlock status. It is terribly important to understand that their vengeance is logical but not justifiable. It is natural for human to fight against injustice. injustice of being seen inferior because of any given asset is very strong. But even a flagrant injustice doesn’t justify use of evil tools. Martin Luther King Junior advocated non-violent approach.it is very sad when people although suffering some great injustice take justice in their hands and basically become worse than their former oppressors.