Toriel is a major returning character from Undertale who plays a minor role in Undertale Yellow. She interrupts a battle between Clover and a Froggit at the beginning of the game and attempts to guide them through the Ruins before a cave-in separates the two. Unfortunately, she only shows up during the beginning portion and probably will not be reused... Ever. However, there might be plans to reuse this role in a future project.