* Antagonists: The villains of Shakespeare's plays are often just as complex and well-developed as the protagonists. They may be evil, but they are often also understandable. Some of Shakespeare's most famous antagonists include Iago, Claudius, Edmund, and Lady Macbeth.
* Supporting characters: Shakespeare's plays often feature a large cast of supporting characters. These characters may be friends, family, allies, or enemies of the main characters. They help to flesh out the world of the play and provide additional conflict and drama. Some of Shakespeare's most memorable supporting characters include Polonius, Mercutio, Rosalind, and Falstaff.