Jun's early career was marked by a stint as a music teacher, a profession that would later serve as a stark contrast to his later work in the entertainment industry. However, as World War II raged on, Jun made the bold decision to join the Toho Mobile Culture Corps, a move that would ultimately alter the trajectory of his life forever.
As the war drew to a close, Jun's experience in the Culture Corps served as a springboard for his transition into the world of acting. He began to appear in character roles for Toho and Shintoho productions, a career path that would span the 1950s and 1960s.
Throughout his time on screen, Jun was renowned for his ability to convey a sense of menace and foreboding, a quality that made him a compelling and memorable presence in the films he appeared in. Yet, despite his intimidating on-screen persona, Jun was said to be a mild-mannered and affable individual in his personal life, a trait that only added to the intrigue surrounding his enigmatic character.
Jun's remarkable career was a testament to his versatility and dedication to his craft, and his enduring legacy continues to captivate audiences to this day.