Once while their father was down with a cold Ariella and Ingrid stayed home to nurse him back to health, Ariella spending time in the kitchen fixing soup. After tasting it, she remarked "Needs more aloe".
Ingrid had mentioned her a few times. Once in answer to Fillmore's question if she had any siblings. Another was when the rapper "Checkmatey" asked if she had a sister and if she looks like her. Ingrid replied, "Taller".
- She is voiced by Tara Strong.