Esther

Cleo (/ˈkli.oʊ/) is an anthropomorphic black cat and chemist/potion brewer. Cleo is genderfluid and uses any pronouns but prefers some over others at certain times, and they frequently change their body's gender expression with potions. Cleo has a slim figure, and all their fur is black; the only visible parts of Cleo that aren't black are their yellow eyes and white claws and fangs that extend out of their mouth.

Career
Cleo practices both chemistry and potion brewing, and they don't believe magic and science to be mutually exclusive. Usually, Cleo would wear proper lab PPE (personal protective equipment) for either field, such as goggles, a lab coat, etc., but Cleo sometimes disregards safety in favour of the witch aesthetic. Cleo acts almost as if they're immortal at times, which they might even be able to achieve with their skillset. Cleo has their own lab to make products both for themself and to make a profit from. Along with chemistry, Cleo also knows some biology as their creations are meant to be used on organisms. Cleo has altered the physiology of their fangs to be able to store and inject liquids (usually potions) similar to venomous biting.