Pizzolo appeared in several regional productions before making her Broadway debut as the title character in Matilda the Musical. She had auditioned for the original cast of Matilda and received several callbacks but was not cast. She auditioned again and was successful, giving her first performance of the role on December 22, 2013. She made several public appearances as Matilda, such as Broadway at Bryant Park and a Ralph Lauren Fashion Show. Her final performance in the role was on September 13, 2014. In March 2015, Pizzolo was cast as the understudy for the roles of Small Alison, Christian and John in the musical Fun Home. After the departure of Sydney Lucas in October 2015, Pizzolo assumed the role of Small Alison. During her tenure in the role, she performed "Ring of Keys" at several events, including the 20th SAGE Awards and the White House. Pizzolo played the role until the production closed on September 10, 2016.
In October 2016, Pizzolo performed in the concert version of Sunday in the Park with George at New York City Center. From January 2017, she played Opal in the new musical Because of Winn Dixie at the Alabama Shakespeare Festival. She is set to play the title role in the 2018 series Butterbean's Café.
In 2019, Pizzolo got the role for Suzie in Season 3 of Stranger Things.
|2013-14||Matilda the Musical||Matilda Wormwood||Shubert Theatre|
|2015-16||Fun Home||Swing and Small Alison||Circle in the Square Theatre|
|2016||Sunday in the Park with George||Louise||New York City Center|
|2017||Because of Winn Dixie||Opal||Alabama Shakespeare Festival|
|2016||Brain Dead||Young Laurel|
- She's also a voice actress.
- She played Matilda Wormwood in the Matilda the Musical on Broadway in 2013-14.
- She also has appeared in other Broadway shows include Fun Home in 2015-16, Sunday in the Park with George in 2016, and Because of Winn Dixie in 2017
- Other stage productions she has appeared in include Hairspray, Little Shop of Horrors, and The Sound of Music.
- She's performed at the White House with Former US President Barack Obama and Michelle Obama and she got to sing the song "Ring of Keys" from Fun Home back in 2015.
- She has a younger sister, Gillian.
- She lives in upstate New York with her parents and younger sister.
- Her mom, Natalie, is a teacher who homeschooled her since she was in the Matilda the Musical.
- Her nickname is Gabby.
- She is from Schenectady, New York.
- She was born in the Year of the Goat.