Answer
Admiral Isoroku Yamamoto, the mastermind behind the attack on Pearl Harbor, was portrayed by Toshiro Mifune in three different films: "The Battle of Midway" (1960), "Admiral Yamamoto" (1968), and "The Battle of the Japan Sea" (1969). Mifune's portrayal captured the essence of Yamamoto's strategic brilliance and unwavering devotion to his country.