Suggestions by @adrianabengozarlopez

Nagini

as The Villain's Pet in Sort by Tropes

Blofeld's cat

as House cat in Fictional animals by species

Roscoe and DeSoto

as The Villain's Pet in Sort by Tropes

Blofeld's cat

as The Villain's Pet in Sort by Tropes

Snowball (Hunchback of Notre Dame)

as The Villain's Pet in Sort by Tropes

Grubs

as The Villain's Pet in Sort by Tropes

Philip (Wallace & Gromit)

as The Villain's Pet in Sort by Tropes

Swiper the Fox

as The Villain's Pet in Sort by Tropes

Bartok

as The Villain's Pet in Sort by Tropes

Percy (Pocahontas)

as The Villain's Pet in Sort by Tropes

Hayabusa the falcon

as The Villain's Pet in Sort by Tropes

Bewilderbeast

as The Villain's Pet in Sort by Tropes

Atila

as The Villain's Pet in Sort by Tropes

Si and Am

as The Villain's Pet in Sort by Tropes

Lucifer

as The Villain's Pet in Sort by Tropes

Felicia ( Basil The Great Mouse Detective)

as The Villain's Pet in Sort by Tropes

Flotsam and Jetsam

as The Villain's Pet in Sort by Tropes

Griffin (Quest for Camelot)

as The Villain's Pet in Sort by Tropes

Mr Burns' hounds

as The Villain's Pet in Sort by Tropes

Hunter Dogs

as The Villain's Pet in Sort by Tropes