http://www.free-cartoons.org/copyright-free-cartoon-characters/

I want a copyright of my cartoon characters, but what should I do?
I recently started drawing cartoons / characters in my free time, and I have been warned to be careful with that I can show and talk about them. So I'm thinking of getting the copyright. But do not know where go for copyright and to do so. In addition, although I am a teenager, I'm still too young to get a job near where I live, so I was wondering if you have to pay to get something copyrighted. If so, where is the cheapest place?
His original artwork is automatically protected under U.S. copyright law when you create it, however, to protect their work legally, you must register by filing a original copy to the Library of Congress as VA, and payment of the fee (which can be found on their website) www.copyright.gov Here is a link to the form you need. http://www.copyright.gov/forms/formvas. pdf
How to Draw Cartoon Characters : How to Draw the Body on a Cartoon Character