Sofia the Worst

Sofia the Worst (also known as Bad Sofia) is an evil clone of Princess Sofia who appears in the Sofia the First episode "Sofia the Second". Like the real Sofia, she is voiced by Ariel Winter.

Personality
She is the complete opposite of Sofia. Instead of being kind and caring like the real Sofia, she is rotten and mischievous. She also has the attitude of a little brat, smiling and laughing evilly every time she causes trouble, as if everything and everyone around her was a toy for her amusement.

Background
When Sofia wanted to go to the hootananny but had to stay behind to keep Lady Joy company, she used a duplication spell to create a copy of herself. She didn't realize that she messed up the spell and created a Sofia that is bad and rotten to the core.

The clone quickly began to cause trouble and after ditching Lady Joy, she went to the hootananny and started to cause even more trouble. However, her fun was halted when Sofia locked her in a barn. She managed to escape, determined to get back at Sofia.

She was soon found out by Roland and Cedric used his magic to send her away, never to be seen again.

Trivia

 * Sofia the Worst is one of many characters who are opposite doubles to the hero/heroine in other TV Shows, like Negaduck from Darkwing Duck, Evil Jake from American Dragon: Jake Long and NomiRandy from Randy Cunningham: 9th Grade Ninja 
 * The name is a refrence to the lyrics in the song from Robin Hood, "The Phony King of England": "Too late to be known as John the First, he sure to been known as John the Worst".