- Daughter of Bill Mumy and Eileen Mumy.
- Plays the violin in her school orchestra. She has also taken piano lessons and learned a few guitar chords.
- Her last name is pronounced "Moo mee".
- Enjoys softball, skateboarding & Reading.
- She also enjoys knitting.
- Has three dogs, Hurley, Bucky and Minnie
- Younger sister of Seth Mumy.
- Her favorite television shows are Pimp My Ride (2004) and American Idol (2002).
- Sister-in-law of Alexa Cline.
- In November 2023, she gave birth to a son name Nathan Oliver Perlmutter. Child's father is her husband Ben H. Perlmutter.
- Her father is of English, Scottish, French-Canadian, German, and Polish Jewish descent, and her mother is of Russian Jewish/Polish Jewish ancestry.
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