Kojuro Katakura is a loyal retainer of Date Masamune, but also appears as a brotherly and mentor-like figure for the One-Eyed Dragon. Modeled after a typical yakuza-style gangster from the movies, his manner of speech, attitude towards his subordinates and even his secondary attack string clearly reflect this inspiration.
Kojuro values honor and loyalty above everything else: he was ready to be executed for the "sin" of turning his sword against his master. Kojuro has been hinted to be stronger than his master various times, and possibly he himself knows this; but he has unwavering faith in Masamune, despite the latter's young age and recklessness. In the One-Eyed Dragon he sees the future leader of Japan, and is determined to bring his master's ambition to fulfillment.
n Sengoku BASARA 2 Heroes, his Story Mode involved him fighting Matsunaga Hisahide's scheme to take Date Masamune's swords on his collection. He eventually fought him and his mercenaries.
Rewards are 3rd costume unlocked for him, Honganji Kennyo, Maeda Toshiie, Matsu and Uesugi Kenshin.
And he is reprised by Travis Willingham in the English dub and Toshiyuki Morikawa in the Japanese dub.