Name: Noir ozul
Name meaning: Noir is French for Black,Ozul is Hebrew for shadow.
Age: 6
Looks:

(Not my pic)
Siblings: Biological ones,Deceased. Adoptive ones Pugsley and Wednesday Addams
Lives: Insane asylum (Formerly),Addams family Estate (Presently)
Why she was in the asylum: She went crazy and killed her siblings. Why? Because they tried to steal her stuffed Animal which she called Kalma. Which was the Finnish god of death and decay

Other: She never talks to anyone. But some of the nurses say she can be heard whispering to her stuffed animal,whom she thinks is real...And may or may not actually be alive.