Name
This is your character's name, not your own. It can be anything you want! Common cartoon names are often like everday names (or not-so-everyday names) with the character's Species attached to the end. Such as Jeremy Cat.
Species
This is what your character is. It can be anything. Just because you can be something silly like a hammer or a rock doesn't meant you have to be. Some of the most famous characters are everday (or not-so-everyday) animals. Heh.
Occupation
If you want to give your character a job, you can. A lot of the time your character's job will be part of the background of a cartoon. Some genres will involve a lot (or all) of the characters with the same job ("Super Hero" or "Catchoolu Investigators" for example).
Notable Clothing
Dress your character up with as much or as little clothing as you want. Mostly clothing will be there to accentuate occupations or to just be funny (beenies, bowties and white gloves).
Height & Weight
Normal cartoon characters are about five foot and weigh one hundred pounds. Some weight nearly nothing, other weigh nearly incalculable amounts.
Mannerisms
Cartoon characters, like people, can have all sorts of odd mannerisms, quirks, idiosyncracies, and other types of habits. This doesn't have to be set in stone. If after playing your character for a while and you discover he tends to poke people in the eye; write it down! This is a catch-all description of your character's personality and can change and grow with your character.
Speech Impediments
Many, many cartoon characters don't speak normally. It's not because they're dumb - well, not all of them anyway - but because it's funny! Lisps, spoonerisms, and all types of accents fall into this category! If you don't think your character talks funny, perhaps you should think again... everybody talks funny!
See/Hear/Smell
As with Mannerisms and Speech Impediments, cartoon characters are notoriously known for having various problems with eyesight (visual), hearing (auditory), smelling (olifactory), and even tasting (gustatory). Some characters can have exceptionally good senses, such as "eagle eyes" or a bloodhound's nose. This is more for roleplaying and fun. It can have a profound effect on the game, just like Mannerisms, Problems, and Beliefs/Goals... or it can very little effect. It's up to you when designing your character. If your character has special Shticks that allow for unusual or abnormal senses (infrared vision, radar sense, parabolic hearing, etc.), write it down here as a reminder!
Food
All cartoon characters have a favorite food. All of them. Some have more than one, others love to eat everything! Write down what your character will absolutly die for in order to eat! If you're playing a really strange Species, you may have to do some thinking here! What does a Mutant Refrigerator from Mars eat anyway?!