What is the last name of the character Muffy?

Muffy’s last name is Crosswire. Her full name is Mary Alice Crosswire, although the series usually calls her by the nickname Muffy.

Muffy is one of Arthur Read’s classmates and a central member of the friend group that also includes Francine, Buster, Binky, and Brain. She is depicted as confident, fashionable, competitive, and accustomed to a wealthy lifestyle. Her family owns Crosswire Motors, a large car dealership in Elwood City.

Muffy’s father is Edward Edsel “Ed” Crosswire, and her mother is Millicent Crosswire. She also has an older brother named Chip, who attends the fictional Tallahassee Tech. The family’s wealth often drives stories about privilege, generosity, manners, and learning to understand classmates whose circumstances differ from hers.

Readers sometimes confuse Muffy’s surname with those of her friends. “Frensky” belongs to Francine, “Read” belongs to Arthur, and “Baxter” belongs to Buster. Crosswire is the family name that identifies Muffy, her parents, and her brother.