Linny is the protagonist of the series, Wonder Pets!. She is a guinea pig with a orange cap and a blue cape. She is the fearless leader of the wonder pets and loves celery.
Linny the Guinea Pig is the group's leader. Linny 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.
Linny has brown and tan fur. She wears an orange baseball cap and a blue cape with the Wonder Pets' logo on it. Linny's nose and paws are pink.
Linny appears in every episode of Wonder Pets! and in both Linny the Guinea Pig shorts. Her first appearance on television was in the short "Linny the Guinea Pig in Space." Her first appearance in an episode of Wonder Pets! was in "Save the Dolphin," and her last appearance was in "How It All Began!"