|First appearance||Bakugan Idol|
|Voiced by|| Masaharu Satou (Japanese)
Ron Pardo (English)
Kato is an old man with gray facial hair (his thick moustache to be accurate),round glasses and is always seen wearing a suit and circular glasses.
Bakugan Battle Brawlers
Bakugan Battle Brawlers: New Vestroia
Kato also appears many times in Bakugan: New Vestroia, assisting the Brawlers once again (even when Marucho is not there).
Bakugan: Gundalian Invaders
Bakugan: Mechtanium Surge
In Arc 1, he is shown that he is now working with Shuuko Marukura, revealing that he has technological capabilities.
In Arc 2, he is now living in Bakugan City.
- Aside from Dan, Shun, and Marucho, he, Miyoko, and Julie Makimoto are the only humans to appear in every season of Bakugan.