Teety-Woo is a minor character in the Moomin universe, known as a small, mischievous creature with a somewhat odd and playful personality. He appears in the Moomin animated adaptations and related stories as a comic, troublesome figure who often causes confusion or gets into petty schemes. His role in the series is generally minor, serving as a source of humor and a contrast to the gentler, more thoughtful residents of Moominvalley.