Kiyosumi Katou
加藤清澄, Katō Kiyosumi
Origin Japan
Debut (Anime) The Ultimate Fighter (OVA)
Debut (Manga) Chase After Baki!!
Age 25 years old (probably)
Hair Color Black
Height 180 cm (probably)
Weight About 75 kg (probably)
Fighting Style Shinshinkai Karate
Voice Takehiro Murozono (Japanese)
Kazumi Tanaka (Japanese, OVA)
Troy Baker (English)
Family Doppo Orochi (Master)

Kiyosumi Katou (加藤清澄, Katō Kiyosumi) is a fictional character from anime and manga series of Baki the Grappler. His name was Seicho Kato in the OVA.

He is known as the "Dangerous Lion of Shinshinkai" (神心会のデンジャラス・ライオン, Shinshinkai No Denjarasu Raion).


A top student of Doppo orochi, who left the dojo after having enough of Doppo's "weak" training regime and trained around the world. He returns to Japan after finding out about the Underground tournaments. Katou's attitude is best described as arrogant, but usually being the butt of a joke; especially around Doppo, Katsumi, Tokugawa, and Baki. However, it is shown that he truly admires and cares for Doppo.


Kato is a man of average height with slicked back black hair.



Katou is a strong fighter and one of the greatest Shinshinkai student. He loves to using a lots of dirty moves during a fight, such as eye poke and ball kicking. In the second series, he uses a fishrod's rope and rubber tube as a weapon. He used it to cut Dorian's ear in a surprise attack. Even that he was brutally beaten by Dorian and had his face scarred with a broken bottle. He has high durability: despite of being almost beaten to death and had his neck cutted with a super-thin metal wire, he survived.