Molly talking to Brain in "Arthur, World's Greatest Gleeper".
Molly Macdonald is a fictional character in Arthur. She is in fourth grade and a member of the Tough Customers. Her younger brother is James MacDonald. In the episode "Breezy Listening Blues", it is revealed that she likes the bands "Mutakrude" and "U Stink". In the episode "Don't Ask Muffy," it is revealed that she gives advice to kids. Her eyes are always covered by her hair.