Her hobbies include singing, horseback riding, hiking, kickboxing, and cooking.

Her aunt is Dana Dillaway, former child actress who appeared in Giant (1956) as Elizabeth Taylor's and Rock Hudson's daughter Judy (age 4).

Has blond hair and hazel eyes.

Her name is a combination of her two grandmothers' names: Mary (maternal) and Nettie (paternal).

She was a 1989 Junior Vocalist Winner on "Star Search" (1983).

Charity works includes an animal advocacy group called the Amanda Foundation.