Ogun
Ogun Wolverine Vol.1 #51,89,103,111-114,169,176
Ogun is a highly trained martial artist and assassin who taught Wolverine the art of ninjitsu. Ogun was a good friend who lived in Japan. Ogun later kidnapped kitty pride and altered her personality into a assassin, Wolverine flew to Japan to get Kitty Pride back and was forced to kill Ogun in the rescue.