Dorothy the Dinosaur is a rosasaur. She's green, with yellow spots, wears a white floppy hat (with a rose), but best of all, Dorothy the Dinosaur loves to eat roses. Dorothy also loves to sing "Romp Bomp A Chomp, Romp Bomp A Chomp"! 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. According to Yummy Yummy, her favorite color is pink.
She was the first Wiggles character to be presented out of the four characters.
She was introduced on July 11, 1991 for appearing on the song Dorothy the Dinosaur from The Wiggles' debut album.
Murray Cook was the first to voice Dorothy, according to Everybody Clap! Everybody Sing!. It said, "Murray not only provided the idea for Dorothy."