Mean Girls 2025 Cast Ages. This is true in all versions of the mean girls story, from the original 2004 movie to the broadway adaptation. Here, we introduce you to the class of 2025, aka the mean girls musical cast, as well as reminding you of their original 2004 counterparts, covering everyone.

This can be inferred by the fact that they are mostly juniors in high school. The main characters in mean girls 2025 are between the ages of 16 and 18.