Meowth, that's right!
Meowth is a Normal-type cat Pokémon in the Pokémon series of video games. Heavily inspired by the Japanese maneki-neko good luck charm, Meowth as a species adores shiny and circular things, particularly coins.
The most prominent Meowth is part of the anime's routine Team Rocket baddie trio alongside Jessie and James. Said Meowth is unique among both his species and most Pokémon as a whole in his ability to talk, an ability he learned to unsuccessfully impress a female Meowth. ("Rocket" was the first word he learned to say, thus the connection to the team of the same name.) This makes Team Rocket's Meowth considerably more impressive than the Pikachu they obsessively and futilely pursue, but kiddy cartoon villains and logic don't really go hand in hand.
In addition to a handful of animutational appearances, several songs by Meowth have been used in animutations. "Nyaasu no Party", the song from Nya Nya Nya, was sung by Meowth's Japanese voice actress, Inuko Inuyama. (Ironically, "inu" is the Japanese word for "dog.") Ms. Inuyama can also be heard as Meowth in the song from Team Rocket's Journey Through Time and Space.