who is she?

I'm sorry but this is the Sebastian Michaelis club,
Refer to the "Black Butler" или "Kuroshituji" club

That is madam red. she is ciel's aunt.

her name is madam red and she is ciel's aunt.
SPOILER ALERT if u havent watched the first 5 episodes of black butler:
u dont see her very much because grell kills her.. ; (

That's Madam Red, Ciel's aunt on his mother's side.

madame red. She got killed by grail

Madam Red, Ciel's aunt. She dies in the Аниме by Grell.

Ciel's aunt!! Her nickname is Madam Red but her actual name is Angelina Durless if Ты were wondering!! :)

Madame Red!

That's Madam Red (Ciel's aunt). She died though.