Name: Onyx

Age: 4

Department: Scientist in training (if that is a department)

Appearance: brown eyes and brown hair put up in pigtails held up by small navy blue bows

Friends: Olympia
Otis
Ms. O
Oscar
Owen
Orchid
Ocean
Olaf
Oren (sometimes)
Ohlm (formally)
Olive
Otto
Dr. O

Enemies: Shapeshifter
Noisemaker
Mr. Lightning
Odd Todd
Ohlm

Personality: happy and quiet

Other: little sister of Oona

Oona is very protective of her; Onyx always stays by her side.

In the movie, when they go to Polly’s lemonade stand, she wears a pink t-shirt with butterflies, purple long sleeved shirt underneath, blue jeans, and pink and white tennis shoes, she is allergic to mice.

Her shoelaces are always untied, since she doesn't know how to tie them.