Millie Bobby Brown, the iconic actress known for her role as Eleven in the hit Netflix series Stranger Things, has captured the hearts of millions worldwide. Born on February 19, 2004, Millie Bobby Brown is 21 years old during the premiere of Stranger Things Season 5. This revelation marks a significant milestone, as both she and her character, Eleven, were just 12 years old when the series debuted back in 2016. The show's narrative has maintained a consistent high school-age setting for its characters, despite the actors aging into adulthood, a testament to the series' careful storytelling.
As fans continue to marvel at the maturity and skill of the Stranger Things cast, it's fascinating to explore how the actors have grown over the past five seasons. Unlike in real life, the show's timeline has progressed more slowly, with only 4 years passing in the narrative since its debut. This deliberate pacing allows the characters to evolve organically, maintaining a balance between their on-screen ages and the actors' real-life development. On November 28, 2025, the cast’s ages are as follows:
Lucas Hedges, who portrays the character Jonathan Byers, is one of the notable actors in the series. Jonathan Byers, the eldest of the Byers siblings, played by Charlie Heaton, is now a mature 20 years old in the show's timeline. The character's emotional journey has been pivotal, evolving from a shy and introverted teenager to a more confident and resilient individual, reflecting the actor's real-life growth and maturity.
In the fifth and final season, Steve Harrington, played by Joe Keery, has risen to be a fan favorite. Despite his character being around 19-20 years old, Joe Keery is 33 in real life. This age gap doesn't detract from his performance; instead, his charisma, humor, and chemistry with the younger cast make Steve feel like the perfect young adult hero still figuring out life.
Another key character, Dustin Henderson, portrayed by Gaten Matarazzo, has also seen significant growth. While Dustin is in his late teens in the show, Gaten Matarazzo is 23, showcasing his remarkable talent and dedication to his role. Despite the age difference, the actors' ability to stay true to their characters' essence and personalities is commendable.
Stranger Things's IMDb page continues to reflect the show's enduring popularity, with fans eagerly awaiting the final season's release. The series has garnered critical acclaim and a massive fan base, making it one of the most talked-about shows on Netflix. As the cast continues to impress with their performances, the show's characters evolve in ways that resonate deeply with viewers, keeping them invested in the story and its beloved characters.
