Related Clues:

• Like a twin in horror films
• Satan's doings
• Rotten to the core
• Bad deeds
• Good competitor?
• Superhero's target
• Apt anagram of vile
• Austin Powers' foe, Dr. ---
• Bad to the bone
• Demonic
• Devil's doings
• Vile's apt anagram
• Morally reprehensible
• Malevolence
• Big Bad Wolf's doing