Millie Bobby Brown Profile | Contact details (Phone number, Instagram, Twitter, Facebook)- MILLIE BOBBY is a 12 Years old cute and talented girl who is an Actress and was born on February 19, 2004, in Marbella Spain. According to the news published on January 9, 2017, Millie Bobby Brown is already making quite a name for herself, following her rock star performance in the retro-styled Netflix hit Stranger Things. The 12-year-old sensation got the star treatment while appearing on Ellen Monday and she did the haircut for the Stranger Thing.