Medusa is a mythical creature played by Tasha. When she touches other life forms, they become frozen and turn blue.
Medusa is primarily yellow. She wears a green-and-gold dress and a gold hat with many green Wormans on top. She wears red Mary Jane shoes.
Tasha has played Medusa in one episode of The Backyardigans: "Sinbad Sails Alone" from season two.