Sallie May is Millie's younger sister and one of the two daughters of Lin and Joe. She lives with her parents alongside her three unnamed brothers and helps out in the Rough n' Tumbleweed Ranch. She is a minor character who made her debut in "The Harvest Moon Festival". Sallie May is implied to be cheerful and violent. She is also shown to be relatively snarky. According to herself, Sallie May is more careful to hide the bodies of people she's killed. She also appears to be a bit more laid-back than others, as shown from the way she talks. She talks with a southern/country accent. Sallie May is a rather tall imp, roughly the same height as Blitzo, with light maroon skin and a pair of serrated, black-and-white-striped horns atop her head. Her eyes sport yellow sclera, slit-like pupils, and long eyelashes protruding from them, with a single white scar over her right eye and on her notched eyebrow. Her charcoal-colored hair is long with white-colored roots, and is usually tied back into a ponytail by a brown hair tie with messy bangs that covers her left eye. Tied around the back of her head is a red bandana with holes. Her attire consists of a sleeveless, black turtleneck crop-top with various tears at the bottom, heavily ripped black leggings under a set of gray-beige short-shorts held by a black belt with an oval-shaped dark gray buckle, and matching-colored cowboy ankle boots. According to herself, Sallie May is more careful to hide the bodies of people she's killed, unlike Millie. She also appears to be a bit more laid-back than Millie, as shown from the way she talks. In "Hell's Belles", she reveals that she misses her sister and is sad that she never visits home often because of her life in Imp City, making her have to help her parents out with everything in Millie's place. She slowly begins to overcome this when Millie says that she will never be too busy for her sister and that, since their brothers are older and able to help their parents at the ranch, she can visit too. Similarly to Millie, she doesn't like being hit on by strangers, especially if she's not interested in them.