Linny the Guinea Pig is the protagonist of the Wonder Pets! series. She is the group's leader, and is the brains of the outfit, a fearless guinea pig who will do anything to help a fellow creature in need. She represents the developmental age of a five-year-old and is also the oldest of the Wonder Pets. Linny reminds her fellow creatures to value teamwork and trust. Her favorite food is celery. In All Star Smashers, she appears alongside Tuck and Ming-Ming as an Assist Character in Lee Saunderson's Up-B move.