|Tsuguo Mogami (Japanese)
Ron Pardo (English)
Kato (カトー, Katō?) is Marucho Marukura's butler and has helped the Battle Brawlers many times by assisting Marucho and the Battle Brawlers when asked. Kato regularly ferries the Brawlers around on his airship.
Kato is seen wearing a suit and round glasses throughout all four seasons. He has gray hair and a large moustache.
Kato also appears many times in Bakugan: New Vestroia, assisting the Brawlers when needed.
In Arc 1, he is shown working with Kyosuke 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. If both halves of Mechtanium Surge are counted as separate seasons, he is one of only four, as Julie is absent from the first half of the season and Miyoko from the second.