Ursula.

About Ursula

Ursula is a fictional character who appears in Walt Disney Pictures' animated film The Little Mermaid (1989). Voiced by actress Pat Carroll, Ursula is a villainous Cecaelian sea witch who offers mermaid princess Ariel a temporary opportunity to become human so that she may earn the love of Prince Eric within three days. However, Ursula is determined to sabotage Ariel's chances in order to usurp King Triton's position as ruler of the oceans.