Black Samurai

The Black Samurai is the main villain of Scooby-Doo and the Samurai Sword.

Scooby-Doo and the Samurai Sword
The Black Samurai was a dreaded samurai warlord intent on ruling the world who was resurrected and unleased a dreadful curse. He spent the whole movie trying to get his hands on the Sword of Fate on his quest for supreme power. Initially the Black Samurai was a honourable warrior, who longed to be a great warrior, as such he tried to get a sword from Japan's greatest swordsmith, but impatient at the time it took, he excepted another deal for a sword to the same quality, but half the time. However this sword was infused with dark magic, which had been used to speed up the forging, and corrupted him, turning him into a ruthless monster.

The Black Samurai was once imprisoned in the Sword of Fate and must get it so he can take over Japan. The evil martial arts school owner Miss Mirimoto tried to use him in her plan to destroy the modern world, but the Black Samurai mocked her for even assuming she could control the truel lord of evil and tosses her onto some stone steps, killing her. Then using his dark powers he imprisoned every else. With his plane to uses his sword to make all the citizens of Japan bow before him. Luckily, Shaggy and Scooby-Doo had discovered the enchanted sword and defeated him by breaking his own sword with it. Because of that, his soul cleansed and set free.

Trivia

 * The Black Samurai is voiced by Kevin Michael Richardson, who also voiced Captain Gantu for Lilo and Stitch.
 * His personality is reminiscent of Mor'du.