Mad Dog Hashimoto

Mad Dog Hashimoto is a martial artist from Japan, who fights like a dog because he thinks he is a dog. He came to compete in the tournament given by Miss Mirimoto, but he was defeated easily by the Robot Ninjas that attacked at the pre-tournament banquet.

Personality
Scooby-Doo discovered that it was easy to make him friendly by throwing him a bone.

Appearances

 * Scooby-Doo! And The Samurai Sword