Taishiro Toyomitsu (豊とよ満みつ太たい志し郎ろう, Toyomitsu Taishirō?), also known as BMI Hero: Fat Gum (BMIビーエムアイヒーロー ファットガム, Bīemuai Hīrō Fatto Gamu?), is the current No. 11 Pro Hero, and was the previous No. 58 Pro Hero eight years ago.

He employed Suneater, and later Red Riot and Real Steel as trainees, with the former eventually becoming his Sidekick.