We all know Millie from her guest roles on television.
Millie is a Spanish-British actress born on February 19, 2004.
We all have seen her in the Netflix series Stranger Things from where she got massive success and won the MTV Movie & TV Awards(2017) Best Actor in a Show.
She has proved herself and gained massive popularity at the age of 17.
So, we can expect more from her in the coming days. Wishing her good luck.