She is obsessed with the boy band "Boyz in Motion" and also likes s'mores, as seen in the episode "Shake, Rattle, and Rae". She even shows compassion (briefly) for Raven in the season 3 episode "Boyz 'N Commotion". Muffy is shown to be nicer than Bianca in personality, and sort of became friends with Raven.
In the episode "Sister Act", it is revealed Muffy has a little sister named Buffy.
- In "Sister Act" she is revealed to be the older sister named Buffy who is just as much of a brat as she is.
- Despite being a member of Alana's Crew, in "Shake, Rattle, and Rae" she briefly acts polite to Raven.
- Muffy (along with Loca) are the only crew members and enemies of Raven that reformed.
- Muffy is named after a monkey character in the Arthur book series.