Mariah comes off as a calm, cool-headed person. Like most Stand users, Mariah has great confidence in her Bastet, notably in that everyone will eventually succumb to it given time. However, she easily loses her cool whenever things don't go according to plan; in such cases, she's been shown to contort her face and bite her lip comically out of frustration and anger. Mariah is quite devious and has worked out many ways in which she could render her power truly dangerous.