Kit was a familiar, an animal guide who protects neophyte witches. She once protected Serena Fredrick but became the familiar of the Charmed Ones after Serena was killed by the warlock Jeremy Burns, and the Halliwell sisters discovered their powers. She was their Familiar from 1998 to 2001, after which she was rewarded by being made human, taking the name Katrina.
- Sensing: Kit possessed the power to sense evil and could identify demons and other evil beings, as well as being able to see spirits and astral beings.
- Agility: In human form, Kit possessed enhanced agility as well as razor sharp nails.
- Omnilingualism: Kit's ability to communicate and understand other familiars whilst in her human form.