* Villain: This is the most common and general term for an evil character.
* Antagonist: This term is more specific and refers to the character who opposes the protagonist (the hero).
* Nemesis: This term implies a character who is specifically destined to be the protagonist's downfall or ultimate enemy.
* Malevolent: This is a more descriptive term that emphasizes the character's ill will and desire to harm others.
* Malicious: Similar to "malevolent", this emphasizes the character's intent to cause harm or suffering.
* Devious: This term suggests a character who uses cunning and trickery to achieve their evil ends.
* Wicked: This is a more informal term that simply describes the character as morally corrupt or evil.
The specific term you choose will depend on the character's specific role and motivations in the play.