Mary is the deuteragonist of Jack's Big Music Show.
Mary is Jack's best friend. She mostly plays the accordion, but loves to pick up any other instrument and dabble with it. She knows how to play some things on the harp, and has a soft spot for opera music. She's been Jack's neighbor ever since they were born. Mary and Jack go together like "rock and roll." Mary is the calmer and more practical one, but she's always ready for adventure. Mary's love of music and knack for problem-solving makes her a perfect match for Jack.
Mary is yellow with purple hair. She has a red shirt and dark blue shoes. Her nose is black.
Mary appears in every episode of Jack's Big Music Show. She debuted in "Little Bad Wolf" and was last seen in "Silly Show."