Kisara! (Kenichi: The Mightiest Desciple.) She even made up/uses a fighting style called Nyakwondo— unexpected cat like movements that give her a unreadable prowess in battle.
Masaharu Niou from Prince of Tennis....I'm not sure if he likes gatos o not....but his teammate has witnessed him feeding a stray cat on the school grounds.
Masaki Ando His partners on his robot are his cats, Kuro (BLACK CAT) Shiro (WHITE CAT) The moves of Kuro and Shiro, the only one High Familliar in SRW OG!