Dorothy is a rososaurus, a "yellow-spotted green dinosaur with surprisingly scary teeth". She lives in a pink and purple house with her own Rosy Orchestra and a rose garden in her backyard. She loves to eat roses and dance the ballet. She enjoys serving guests rose-derived treats such as "rosy tea". Dorothy, originally played by Cook, has been played by Leeanne Ashley and Lyn Stuckey. Red Wiggle Murrary Cook originally voiced Dorothy. Since 1997, South Australian Carolyn Ferrie, a trained opera singer and dancer, has provided her voice.