Katz are recurring characters in the Tales series.
Appearances in Mothership Titles
Tales of Symphonia
Tales of the Abyss
Tales of Graces
Tales of Zestiria
Katz are part of the seraphim kind in Tales of Zestiria. The members of the Katz Trio, consisting of Bad Katz, Gangsta Katz, and Rowdy Katz, can appear as part of any random encounter through the "Katz Trio" Battle Action, obtained from the game's downloadable content.
Tales of Berseria
In Tales of Berseria, Katz are part of the malakhim kind. Some three odd years before the game's main plot takes place, Katz had a big party which resulted in them losing their souls. Velvet Crowe and her allies can collect them in exchange for the ability to open Katz boxes, roughly half of them having an item inside them, usually an attachment.
Appearances in Escort Titles
Tales of the World: Narikiri Dungeon 3
Tales of Symphonia: Dawn of the New World
In Tales of Symphonia: Dawn of the New World, Katz possess three important roles: the first is allowing the party to choose which monsters they want to accompany them, the second is cooking that allows the monsters to grow and evolve into new classes, and the third is allowing Emil Castagnier and Marta Lualdi to take missions from clients around the world. Such locations are Dwarves' Ore Mine, Sandy Windy Cave, Volcanic Cave, Frozen Crevasse, and Twilight Palace, which can not be accessed via the World Map. The Katz still live in Katz' Village.