Mrs. Toad is a selfish, vain, busty, and arrogant toad who serves as the first antagonist in Thumbelina. She is a mother of three sons, and they are a traveling family known as "The Singers De Espana". She kidnaps Thumbelina while she is asleep in her bed, and tries to force her into joining her tour and marrying her son Grundel. Thumbelina kindly rejects the offer, but Mrs.Toad doesn't listen and rushes off to get her husband. She is not seen after this until the end credits where she is seen happy for her son Grundel in finding a female toad to marry.
Mrs. Toad is the second Don Bluth anthropomorphic character to have a bosom, the first one is Goldie from Rock-a-Doodle.