She has a very elongated nose and pointy chin, with thin lips. Wrinkles around her mouth, eyes as well as her neck show her age. Her brunette hair has front bangs with the rest in a bun. Yvonne is seen wearing a pink, presumably button-up, long-sleeved shirt as well as black, pink-striped sweater vest. She also wears a gold earring on her left attached ear.
Although she is not seen actually attempting to "fix" any child's behavior, the fact that she is a nanny, and a good enough one to be on Nanny 911, leads us to assume that she is strict, but compassionate, easily "getting through" to kids, and correcting their behavior.
- The show she was featured on, Nanny 911, is a real life television show.
- She is a parody of an actual person of the same name: Yvonne Finnerty.