Cleo DeNile is a student at Monster High. She is the daughter of Ramses, a Mummy. She despises her older sister Nefera, and her classmate Toralei. She's the most popular ghoul in school, with a royal, confident, leader type personality. Usually her attitude is selfish, arrogant, competitive and sassy, but deep down, she's kind, caring and thoughtful to those she loves most. She loves her on and off boyfriend Deuce and her best friend Ghoulia. Her catchphrase is "Oh My Ra". She's a shopaholic.