Nemo

Nemo is Francine's pet cat of ambiguous breed in the Arthur TV series. He was first introduced in the season three episode Francine and the Feline, being discovered by Oliver Frensky in the landfill in which he worked which led to the adoption of Nemo. Initially, Catherine had adopted Nemo as her own pet, naming the cat Rose Petal, but later, she realized that the cat was more suitable as Francine's pet, leading him to be renamed Nemo.

Like Pal, in some episodes, he is shown to be able to communicate to other pets and babies, but Nemo is usually cast as an antagonist in these situations. During these interactions, especially with Pal, he is prone to insults and sarcasm but can be occasionally helpful.