Killer is a bitty, aka a miniature version of his original. He wears a white sweater, a blue jacket, white pants, and pink sneakers. Killer likes his usual outfit but is open to wearing anything his master puts on him.

He is cocky and sneaky, often leaving his master's bedroom to mess around the house. Killer likes cats but sometimes fears them because they chase him down.

Killer likes to cuddle their master and gets along well with other bitties.