|1999 - 2011|
|Debut:||Chapter 2; Episode 3 (1999); Episode 1 (2011)|
|Japanese VA:|| Norihisa Mori (1999); |
Takuma Suzuki (2011)
|Other VA:|| Sean Broadhurst (English, 1999); |
Lucien Dodge (English, 2011)
|Hair Color:||Brown (1999); Bordeaux (2011)|
Katzo is a crewman under the Captain of the ship that takes Gon, Kurapika and Leorio to Dolle Harbor. On the way, Leorio and Kurapika have an argument which they decide to end with a fight out on the deck when a big storm is coming. Just before the fight can start, Katzo is knocked off the deck by a piece of wood broken off from a yard. He is saved at the last moment thanks to a combined effort of Gon, Kurapika, and Leorio. After that Kurapika and Leorio apologize to and become friendly with each other.
- Katzo has considerably more characterization in both anime adaptations than in the manga. The 1999 series portrayed him as a tough guy, whereas in the 2011 series he is a bit clumsy and fragile.