Carol "Mom" Miller (voiced by Tress MacNeille) is an aggressive, threatening and Machiavellian harridan, reminiscent of the Wicked Witch of the West. She manages and owns 99.7% of MomCorp, a large, multibillion-dollar industrial complex with numerous subsidiaries and a monopoly on robot production, as well as being the company that created Bender. Publicly, she retains the corporate image of a sweet, bustling old woman who often slips into the stereotype of a Deep South grandmother; behind the scenes, she removes her fat suit and emerges as a skeleton-thin, malevolent, and foul-mouthed old crone. She has three sons, Walt, Larry and Igner, whom she terrorizes and often employs to do her dirty work. Mom has a romantic history with Hubert J. Farnsworth, who worked at MomCorp when he was younger, and she was previously married to Dr. Ogden Wernstrom. In Bender's Game, it was revealed that Farnsworth is Igner's father.