Current 24+ Millie Bobby Brown Age 12
Current 24+ Millie Bobby Brown Age 12. Millie bobby brown was born on february 19, 2004, making her 15 years old when stranger things 3 aired. Millie was born on february 19, 2004 in the spanish city of marbella and became the third of four children of english parents kelly and robert. The actress recently got her learner's permit and when the breakout star of stranger things 2, priah ferguson, was just 12 years old when season 3 was released.