Madison is loud, happy and extremely optimistic as is evidenced from her perpetually vacant smile, and has a bit of a Southern voice like Eddie; however, her hippie-child appearance belies the perceptive mind behind it. She is always happy or thrilled no matter what happens, even if she gets hurt, though she does cry when the kids are put down after learning their lesson in Am I Blue? Madison is sometimes crazy, creates havoc and disaster, and is often the focus of Tamika's bullying (in the episode Home, for example, Tamika shoved a tuba onto her head) Madison has a huge imagination and usually can't concentrate on what's really supposed to be done. She enjoys the company of many animals and baby creatures. In the pilot episode she mentions that she has a grandmother who is of Colombian descent. However, her last name suggests she is of Greek descent. Her instrument is the high-pitched violin and/or viola, but in the game Funk Box, she also plays a cello. She is 12 years old.
- She is very similar to Dee Dee from Dexter's Laboratory and Leni Loud from The Loud House.
- All three of them are ditzy blondes.
- All three are optimistic
- All three are in their adolescence.