For nearly a decade, Cillian Murphy embodied one of television’s most recognizable characters: the calculating gang leader Tommy Shelby in the hit series Peaky Blinders. Along with the character’s icy stare and calm authority, another element quickly became iconic — the sharply shaved undercut hairstyle that defined Shelby’s look throughout the show’s run.
While audiences around the world embraced the haircut as a symbol of the character’s power and style, Murphy himself has repeatedly admitted that he never enjoyed wearing it. In fact, the actor has said that the distinctive haircut created unexpected challenges in his everyday life, especially when the cameras stopped rolling.
During filming seasons, Murphy’s hair had to be shaved into the now-famous Shelby undercut: extremely short on the sides with longer hair left on top. The look was historically inspired by working-class styles in early 20th-century Britain, but its dramatic appearance made it instantly recognizable to modern viewers. Once the show gained global popularity, the hairstyle became a cultural trend, with barbers around the world advertising the “Tommy Shelby cut.”
For Murphy, however, the transformation came with a price. Every time the production schedule began, the routine started with a visit to the on-set barber and the return of the clippers. The actor has joked in interviews that the experience was far from pleasant. Each trim, he said, felt like a reminder that he was stepping back into a character who had taken on a life far beyond the set.
Behind the scenes, his co-stars often teased him about how much he disliked the haircut. While other actors occasionally enjoy adopting a signature look for a role, Murphy found the Shelby style restrictive. The problem was not just aesthetic — it was the way the haircut erased the anonymity he valued in his private life.
Away from filming, Murphy has always preferred a quiet existence. Despite his global fame, he has maintained a reputation for protecting his personal life and avoiding the celebrity spotlight whenever possible. The actor lives largely outside the typical Hollywood lifestyle and has spoken frequently about wanting to keep his family life separate from his career.
But the moment the Peaky Blinders haircut returned, anonymity became almost impossible. Fans could recognize him instantly in public spaces, whether he was walking down a street, shopping, or spending time with his children. Many enthusiastic viewers would call out “Tommy!” when they spotted him, blurring the line between the actor and the character he portrayed.
Murphy has explained that while he appreciates the passion of fans, the sudden attention could feel overwhelming. The haircut essentially turned him into a walking reminder of the show’s most famous character. For someone who values privacy, that transformation could feel like surrendering a part of his everyday freedom.
Despite these challenges, Murphy continued to commit fully to the role for the sake of the series and its audience. His dedication helped turn Tommy Shelby into one of the most celebrated television characters of the last decade. The performance brought international acclaim and helped establish Peaky Blinders as a global phenomenon.
Yet when filming finally wrapped, Murphy was more than ready to leave the haircut behind. For him, letting his hair grow out again symbolized something simple but meaningful: the return to being himself, no longer instantly mistaken for the feared gang leader of Birmingham.