Millie Bobby Brown
For many, their introduction to Millie Bobby Brown came with the debut of "Stranger Things." However, Brown had been active in various projects for several years before her breakthrough role.
The Netflix sensation propelled the young actress to stardom, and she has since taken on many roles. Notably, she continues to embody the enigmatic Eleven in "Stranger Things." All of this amounts to an impressive resume for someone 18 years old.
