Jun’ichi Okada

Jun'ichi Okada's Brazilian Jiu-Jitsu black belt promotion in October 2024 was not a first — it was his fifth black belt across martial arts disciplines, a distinction that reframes his BJJ achievement entirely. Earning this milestone by around age 43, Okada embodies a decades-long pattern of serious martial arts commitment that speaks to both the breadth and depth of his dedication to technical and physical mastery.

For his BJJ development, Okada trains under Tomoyuki Hashimoto at CARPE DIEM, one of Japan's most respected Brazilian Jiu-Jitsu academies. He arrived at the mats not as a novice, but as a practitioner already forged across multiple disciplines — a foundation that shapes how he absorbs and applies jiu-jitsu principles. Okada has spoken about researching traditional Japanese body mechanics as a bridge between his cultural roots, his performance work, and his jiu-jitsu practice, adding an intellectual dimension to his training that reflects the perspective of a seasoned martial artist rather than someone finding their footing for the first time.

In January 2026, Okada entered the IBJJF European Championship as a black belt competitor in the Masters 3 division — a decision that underscores the seriousness with which he approaches his BJJ development. Competing at an IBJJF major is no ceremonial appearance; the black belt Masters 3 division pits practitioners in their forties against experienced, technically capable opponents on an international stage.

At 45 years old as of January 19, 2026, Okada competed in a bracket that typically encompasses athletes aged 41 to 45 — practitioners who have spent years or decades refining their games under competitive pressure. His participation at the 2026 IBJJF European Championship speaks directly to the standard of training maintained at CARPE DIEM and to the competitive ambitions that have defined his martial arts career across disciplines. For someone who has already earned black belts in multiple arts, stepping onto the IBJJF competition floor represents a continuation of a lifelong habit: seeking structured, high-level environments in which to test and grow.

Okada's martial arts background converges directly with his professional career in Netflix's The Last Samurai Standing, where he stars as lead protagonist Shujiro Saga. His involvement extends well beyond performance — Okada also serves as producer and action choreographer on the series, positioning him as a central creative force shaping how the action is conceived, designed, and executed on screen.

This multifaceted role is made credible by the foundation Okada has spent decades building. Five black belts across martial arts disciplines — including BJJ earned under Tomoyuki Hashimoto at CARPE DIEM — provide the technical vocabulary needed not only to perform demanding physical sequences, but to design and direct them with authenticity. His study of traditional Japanese body mechanics further equips him to bring historical and physical specificity to the choreography in a way few performers could. The convergence of his roles as lead actor, producer, and action choreographer in a major international production marks Okada as one of Japan's most physically and creatively versatile entertainers — one whose martial arts practice is not supplementary to his professional identity, but deeply embedded within it.

Okada frames Brazilian Jiu-Jitsu as a vehicle for setting long-term goals and committing to continuous technical improvement — a philosophy that aligns naturally with someone who has already navigated the demanding road to black belt rank across multiple martial arts. Where many practitioners treat a black belt as an endpoint, Okada views it as a framework for sustained growth, consistent with both the BJJ tradition and the discipline required to accumulate five black belts over a lifetime.

His emphasis on incremental progress and technical refinement over immediate results reflects a mature competitive mindset shaped by years of structured training before he ever began his jiu-jitsu journey. Training at CARPE DIEM provides the rigorous instructional and competitive environment this approach demands — a gym known for developing technically sound practitioners and supporting athletes who compete seriously at events like the IBJJF Europeans. His integration of traditional Japanese body mechanics into his understanding of movement further illustrates how his cultural background and broad martial arts experience continue to enrich his development on the mat.