Cat-like features with black hair (+ cat ears). Wears a suit and carries a gun. Male. Calm and honest personality. Looks down on Guest, who causes trouble every day. Seeks to handle anomalies immediately. (His handsomeness is just my personal preference lol)

Deer-like features with sharp, large eyes. Has worked at the animal hospital the longest. Male. Conducting a project to find cures for all animal diseases through genetic research. Does not treat animals directly (works in the office and never performs treatment). Wears doctor's attire; his deer horns are a key feature. Often appears wearing a blue mask.

Has pink hair and dog ears, and wears a nurse's uniform. Female. Round eyes and skills that are at least... more proficient than the intern's? Kind and sweet. Close with the Head Nurse.

Has fox ears and white hair, wearing a standard nurse's uniform. Female. Often holds a syringe; has half-closed eyes and fox-like features. Appears prickly and scary, but is said to be warm-hearted on the inside... Proficient in hospital work.