I guess the fact that there's actually a background on this inspired from Matt, otherwise there would only be white. Anyhoo here's the cast of Michelle & Feo, lemme just bring it down a notch and elaborate on them
(In order from Left to Right)
Feo is a self-centered, egotistical, and generally jerky character. Mainly because life has been so bad to him. First of all he's a shaved cat, who wants to be one of those? And secondly he is a struggling animator for a network that has been going downhill and selling out to 5 year olds. (Yes this is a parody of CN), he is best "friends" with Michelle, if you exclude the fact that he tries to get her fired from her great job as a comic book artist.
Grundman is a small 9 year old boy, and also Feo's last line of advice. Grundman wants nothing more than to be Feo's best friend and help him out when he's down. Tied between his knowledge of right and wrong and the will to help Feo out at all costs, Grundman gets in to bits of trouble when Feo is around. Grundman is a beaver if you can't tell.
Michelle is a happy-go-lucky moron. Best friends with Feo, constantly irritating Feo in the process. She is a very successful manga artist for her local comic publisher.
Karlee is Michelle's girlfriend, not girlfriend as in...relationship. But girlfriend as in, her homegirl. She is a manager at the comic shop that sells Michelle's work. She has a monsterous crush on Feo but Feo don't fly with no freakin' bunny.
The Onion (Don):
Don is the freak of the neighborhood. He runs an icecream parlor down the road, the gang usually stops by daily for a sundae or two. The gang has a pretty good relationship with Don, but of course, they're jerks to him. Thus they have dubbed him The Onion, for being the only anthropomorphic vegatable in town. And possibly on Earth.
Kristi, a MALE hippo, is a very unhappy individual. Given the name Kristi by his adopted hippie clam family, Kristi set out to get his revenge on the world. He figured he'd take his rage out on the thing he hated most, besides VHS cassettes, the animation industry. He is Feo's boss and he constantly bites away at Feo's work until it is so deprived of any creativity that...KIDS WILL LOVE IT. He enjoys being a jerk, and celebrates it.