Trivia

She is deaf in one ear.

(November 20, 2018) She became a Goodwill Ambassador for Unicef. With just 14 years, this made her the youngest person in history to be appointed that position.

Before her breakthrough role in Stranger Things (2016), her family was facing a difficult financial situation. Because of that, they were practically living with her aunt.

Her favorite movie is Up (2009).

On The Late Show with Stephen Colbert (2015), Stephen Colbert asked Millie what she is most afraid of, and she stated that her biggest fears are sharks, darkness, and bungalows.

Childhood friend of Zahara Jolie-Pitt and Shiloh Jolie-Pitt.

She was born in Spain (but cannot speak Spanish), however her family moved to England before she was five, and later to the USA in 2011.

When not acting, she enjoys boxing.

Fans have noted that Brown bears a resemblance to a young Carrie Fisher, and various online petitions have been started to have Brown star as a young Princess Leia if such a movie ever began production. She has yet to comment on the comparisons. In October 2018, she went as Princess Leia for Halloween, in the iconic white costume and with bun hairstyle.

Nominated for the 2018 Emmy Award in the Supporting Actress in a Drama Series category for her role as Eleven in Stranger Things (2016), but lost to Thandiwe Newton from Westworld (2016).

Her mother selects all of her outfits to make sure that she is dressed appropriately for her age.

On April 10, 2023, Brown announced her engagement to Model Jake Bongiovi after nearly two years of dating.

She is a supporter of Liverpool F.C.

Auditioned for the role of 10-year-old Michelle in The Boss (2016) and for the role of X-23 in Logan (2017). She also auditioned for Game of Thrones (2011).

When she went to apply for her driving permit at age 15, she was told by a DMV official to take a seat as she was number 11 on the waiting list (interview Lily James/Millie Bobby Brown/Little Mix (2019)).

Huge fan of Nicki Minaj. Even rapped Nicki Minaj's verse from Ye's song "Monster" during her appearance on The Tonight Show Starring Jimmy Fallon (2014).

Despite the media controversy over their age difference, she defends being close friends with Drake and considers him a career mentor.