Agnes

"I've made mistakes in life... and his name is Seymour."

- Agnes' unlock message. Agnes Skinner is the sixth female character to be introduced to the game, and is unlocked upon completion of the Skinner House. She has 8 jobs in total, one of which collecting extra revenue, as it requires the Sprawl Mart; a new premoum building released at the same time. She has no quotes in game, as she is a non-voiced character.

Simpsons Wiki Description
Agnes Skinner, more commonly known as Mrs. Skinner, is the strict and bitter mother of Seymour Skinner. She is very harshly controlling of Seymour, and treats him like a mother would a small child, once grounding him because he did not say who was at the door after answering it. She hates Seymour's choice in women, especially Edna Krabappel. Agnes has married a total of four times, once with Skinner's father, Sheldon Skinner, and following Sheldon's death she then married three more times, each time to a tow truck driver. Several Springfield residents (including the Simpsons) are afraid of her.
 * Read the full article here at Simpsons Wiki.