Eevee

Eevee is a Female character in Peter And Friends

Trivia
Back when Susie debuted, She and Susie were enemies Susie then got the best of her, They now live together.

It is revealed in the episode "Peter's Crush" that Peter has a crush on her.

It is revealed in the comments of the S1 Ep. 9 intro that her name is based of the Pokémon "Eevee".