All the Stars We've Lost in 2022

Stephanie Bissonnette, who starred in Broadway's "Mean Girls" as Dawn Schweitzer, died at the age of 32 on Dec. 17 following a battle with brain cancer, per Deadline.

"Our hearts are broken as the Mean Girls community mourns the loss of Stephanie Bissonnette," the official "Mean Girls" on Broadway Twitter account wrote following her death. "Our original Dawn Sweitzer, Stephanie was part of our company from our first performance to our last. She filled our theater with her laughter and friendship, inspired us with her fighting spirit and bravery, and graced our stage with the fiercest talent Broadway has ever known," the post continues. "Our thoughts and prayers are with Stephanie's family, friends, and the entire Mean Girls community during this time. We will miss her profoundly and encourage everyone to do something they love today in Stephanie's honor."