Eliza "Newt Newt" Pratt (born April 5, 2013) is Kim's youngest daughter. She is also Angry Grandpa's and Tina's granddaughter. And she is also Michael's, Charles's and Jennifer's niece. She lives in Syracuse, New York with her mother, father, and her older sister.

In "GRANDPA'S DAY OFF!" Michael, Bridgette, Kim, and Jennifer give Grandpa a day off from looking after J.C, Johnny, Jacob, and Jimmy by taking them to Chuck E-Cheese. In the intro, Eliza is at Michael's house and spoils the "surprise".