Ratso

Ratso
Ratso (Sénéchal in French, Blackie (ブラッキー Burakkī) in Japanese and Polish, Balthazar in Dutch and Spanish, Gatto in Italian and Mushakess in Arabic) is an annoying black-and-white neighborhood cat who appears to be Wowser's rival or his friend for some reason, and often pretends to be nice and sabotages the Professor's inventions.

English Dub version was voiced by late Robert Axelrod.