Support WBUR'Shōgun' banked on authenticity. It became one of 2024's most successful showsPlay06:43Download AudioOlivia HamptonApril 23, 2024 ShareHiroyuki Sanada plays in the FX miniseries Shōgun the role of Yoshii Toranaga, a fictionalized version of Ieyasu Tokugawa, who ultimately founded Japan's Tokugawa Shogunate. (FX)