Billy is one of the main characters from The Grim Adventures of Billy & Mandy, along with Mandy and Grim. Here are ten facts about the character. Did you know all of them? Let us know below if you know any more!

1. His IQ is -5. When the same IQ test was taken by a shovel and two candy bracelets, they scored 17.

2. He is the best friend of Mandy, who treats him more like a servant than a friend, never being one to pass over the opportunity to influence the stupid.

3. Billy found a spider's egg in Grim's trunk, and as the spider (Jeff) saw Billy first when he hatched from his egg, he thinks Billy is his parent. However, Billy is arachnophobic to the highest possible degree. Jeff has done everything possible to win his dad's love, but no matter how good an arachnid Jeff is, all Billy can see is a disgusting monster.

4. His greatest fear is a 'Spider-Clown Mailman'.

5. Billy's lifelong dream is to be a "Chicken Juggler."

6. Billy is addicted to chocolate. He was once able to eat 10,000 boxes of chocolate all by himself; then, when he turned into chocolate, he proceeded to eat himself until all that was left was his head!

7. He is part werewolf because he was bitten by a werewolf on the full moon.

8. He is often seen taking a dangerous and powerful object from Grim's trunk or receiving one from Grim himself, while completely ignoring Grim's and sometimes Mandy's words of caution, and using it in the worst possible way.

9. Billy and Mandy met as toddlers, when he came over to her house, repeatedly ringing her doorbell to annoy her enough to answer. When she did, the first thing she said to him was, "Are you some kind of idiot?"

10. He frequently picks his nose.

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