Brook is one of the most memorable and endearing characters in the world of One Piece, both in the anime and manga. As a member of the Straw Hat Pirates, Brook holds the unique role of being the crew’s musician and also stands out as the ninth official member to join their ranks. His skeletal appearance might seem eerie at first glance, but it’s his cheerful demeanor, offbeat humor, and undeniable charm that have made Brook a fan favorite across the globe.

Now, when we talk about Brook, it’s impossible not to mention just how deeply emotional his backstory really is. Originally a human, Brook was once part of the Rumbar Pirates—a crew known for their love of music and lively performances. Tragedy struck during a long voyage when his fellow crewmates began succumbing one by one to a deadly illness known as “Rumbar fever.” Despite his efforts, Brook couldn’t save them, leaving him completely alone on a ghost ship drifting through the Florian Triangle.

In a final act of desperation, Brook ate the Yomi Yomi no Mi—the Revive-Revive Fruit—which granted him the ability to return from death. But due to a cruel twist of fate, his body had already decomposed, so while his soul returned, there was nothing left but bones. For an entire fifty years, Brook existed as a spectral presence aboard the abandoned ship, playing music for himself and keeping his promise to reunite with Laboon, a whale he once knew.

Eventually, the Straw Hat Pirates discovered him, and thanks to their help, Brook was finally able to regain physical form. From that moment on, he became an official member of the crew, bringing with him not only musical talent but also surprising combat skills. Brook plays multiple instruments like the violin, guitar, and piano with incredible flair, often using his performances to lift the spirits of his friends. And don’t let his funny antics fool you—Brook is also a highly skilled swordsman, fast on his feet, and extremely agile in battle.

What makes Brook truly special isn’t just what he can do, but who he is at heart. He’s loyal, kind, and always striving to bring joy to others, even after enduring decades of loneliness. His tragic past could’ve broken him, but instead, Brook chooses to live life with enthusiasm and gratitude. That kind of resilience has made him a source of inspiration within the series—and among fans too.

And speaking of personality, many fans have taken interest in analyzing Brook from a psychological perspective. In terms of MBTI typing, Brook fits the ESFP profile quite well. He’s outgoing, energetic, and absolutely thrives in social settings. Whether he’s cracking jokes, performing a song, or launching into one of his famously awkward introductions (“I’m Brook… and I’m all bones!”), he loves being the center of attention. ESFPs are often called “performers,” and honestly, that label suits Brook perfectly.

His creativity shines through his music, which is a core part of his identity. The way he uses melodies to express emotions, comfort others, or even fight in battles shows just how deeply art is woven into his being. Plus, Brook tends to act on impulse—sometimes jumping headfirst into situations without overthinking. While this can lead to some humorous mishaps, it also reflects the adventurous spirit typical of ESFPs.

When it comes to Enneagram types, Brook seems to align most closely with Type 7—the Enthusiast. These individuals avoid pain by chasing excitement, novelty, and fun experiences. Brook’s constant upbeat attitude, love for adventure, and tendency to focus on the positive side of life fit this type beautifully. He rarely dwells on sorrow, choosing instead to keep moving forward with a smile.

That said, there are clear signs of Enneagram Type 4—the Individualist—in Brook as well. This type craves authenticity and fears being ordinary. Brook’s deep connection to music, his poetic reflections on life and loss, and his desire to be remembered all point toward this inner longing for meaning and uniqueness. So while he may outwardly embody the carefree spirit of a Type 7, underneath lies the soul of a Type 4, rich with emotion and introspection.

Putting it all together, Brook emerges as a layered character: part entertainer, part warrior, part philosopher. He’s someone who’s faced unimaginable grief but still finds reasons to laugh, sing, and dance. And that balance—between light and dark, humor and heartbreak—is exactly why fans hold Brook in such high regard.

Of course, personality frameworks aren’t set in stone. People—and fictional characters like Brook—can display traits from multiple types. But looking at Brook through these lenses helps us appreciate not just what he does, but why he does it. Whether he’s playing a haunting melody on his violin or charging into battle with sword in hand, Brook remains true to himself: joyful, brave, and unforgettable.

So yeah, Brook? He’s more than just a skeleton with a hat and a cane. He’s proof that even after fifty years in the dark, you can still come back with a song on your lips and hope in your heart. And honestly, that’s why Brook continues to resonate with so many people around the world.