Deirdre Taylor (Jolie Jenkins) is Mike's ex-girlfriend. Her death occurred before the series' timeline and plays an integral role in the first season mystery, which focuses on Mary Alice's suicide. Deirdre came from a wealthy family, but rejected it after becoming addicted to drugs as a young adult. During this time, she dated Mike, a drug dealer at the time. Their relationship ended after Mike was incarcerated for killing a corrupt police officer who attempted to rape Deirdre. Soon after, Deirdre gave birth to Mike's son without his knowledge. She later sold her son to Mary Alice, who worked as a nurse in a rehabilitation facility in Utah. Mary Alice and Paul fled town and raised Deirdre's child as their own. Years later, Deirdre tracked down the Young family and attempted to take the child, Zach, back, but Mary Alice killed her in an attempt to stop her. Mary Alice and Paul chopped up Deirdre's body and buried it underneath the cement of their swimming pool.