Ariella Third

Ariella Third is one of Professor Third's daughters and Ingrid's big sister. She is voiced by Tara Strong.

History
Ariella's sole appearance is in A Cold Day at X, when she and Ingrid are seen in the kitchen of their house cooking some soup for their dad to cure his cold. After tasting it, she speaks once, saying "Needs more aloe". She was also mentioned twice: Once in Nappers Never Sleep, when Fillmore asks if she has any siblings and once in Of Slain Kings on Checkered Fields, when the rapper Checkmatey asks if she has a sister and whether she looks like her. Ingrid replies, "taller".