"Adolescence" filmed from March to September 2024, when Cooper was 14 years old. Cooper is currently 15, which Stephen Graham, the show's co-creator, co-writer and star, confirmed to TODAY on March 21.

Adolescence star Owen Cooper has become the breakout sensation of the year – and it’s not just his acting that’s getting everyone talking. The 15-year-old’s prep for his role as Jamie Miller was downright chilling, and it’s no surprise his performance has left fans speechless.

“One hundred percent,” Cooper agrees. “And if you’re worried or get embarrassed, just know that everyone gets embarrassed. If I hadn’t let myself be embarrassed, then I wouldn’t be here. None of this would have happened.”