"Mad Dog" Hashimoto is a martial artist from Japan, with the mentality of a dog.

Physical appearance

Mad Dog Hashimoto is an adult, muscular Asian male, with a bald head. He wears a spiked collar and a red and white Gi, which are torn at the sleeves, revealing his muscles.


His personality is the equivalent to that of a bull dog. He barks when he first sees the gang, but Scooby-Doo discovered that it was easy to make him friendly by throwing him a bone, which he immediately buried.


Scooby-Doo! and the Samurai Sword

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. He last attended the renovated museum, along with Kerry Kilpatrick and Sapphire Sonja, to see a statue in honor of Scooby-Doo outside.



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