A Sudden Realization in Greece
Simon Pegg has spent years playing fast-talking, energetic characters on screen. But off-camera, the British actor was dealing with a quieter, internal struggle. The 56-year-old star of Shaun of the Dead and Mission: Impossible recently revealed he has been diagnosed with ADHD. For Pegg, the news brought clarity, explaining behaviors he had wrestled with for decades.
He shared the news on the podcast I’m ADHD! No You’re Not, explaining that he suspected something was going on for a long time. The turning point came during a family holiday in Greece. After reversing his car into a post, he began to wonder about his persistent lack of concentration. He used his phone to search whether people with ADHD have more car accidents. The answer was yes.
“That was the final straw that broke my ADHD camel’s back,” Pegg said. He knew then that he needed to speak with a professional to get a definitive answer.
Misconceptions and Mental Health
Before his diagnosis, Pegg assumed his struggles were personal failings. “I’d been putting it down to just character fault,” he admitted. He also had a narrow view of what the condition looked like, assuming it only affected chaotic children who couldn’t focus in the classroom. However, looking back at his own childhood, he remembered quiet symptoms like constant fidgeting.

Pegg has been open about his struggles with clinical depression, which began when he was 18, as well as past issues with alcohol. For a long time, he believed these challenges had triggered his attention issues. In reality, he may have been treating the symptoms of his ADHD rather than the root cause.
Now, he is learning to live with the diagnosis. His wife has been highly supportive, treating the news as if they had known all along. She simply makes allowances for his forgetfulness and occasional lapses in focus. “It’s just who I am, and it’s just things that I do,” Pegg said.
A Growing Trend in Adult Diagnoses
Pegg joins a growing list of prominent public figures in the UK who have received adult ADHD diagnoses. Other well-known names include:
- Comedian Johnny Vegas
- TV presenter Richard Bacon
- Presenter Ant McPartlin
- Comedian Sue Perkins
The rise in diagnoses is reflected in national data. According to University College London, adult ADHD diagnoses in the UK saw a nearly twentyfold increase between 2000 and 2018. While awareness is growing, many medical experts believe the condition remains widely underdiagnosed, particularly among older generations who grew up before the condition was widely understood.