Pretty Moppet's Real Name is Karaline.
 
Reason of her name "pretty moppet": She was in fact attracted to dolls and her fave was one called Moppet. She was a little weird and psycho in her own way. Being a very Pretty young girl they mixed it and nicknames her Pretty Moppet.

 
Her Family: She is Spike's sister. In fact when spike was about 7 years old, Karaline had been sent to a special school cuz she was very smart. Spike was very close to her and that explains his attraction to girls who are weird and kinda crazy, like Dru. When she got back home and found out what happened to her family. she decided to practice a little black magic to give herself immortal life and promised to find and kill whoever turned her Brother to a vampire and had killed her family.

She's now 159 years old.

She finds Buffy one day. And discovers about her knowing of Spike and Dru. She asks them where they stay, explaining to them about her being his sister. She falls in love with Angel and pretty much flirts with him. That's what makes Buffy hate her from the start. When she finds them she has a big fight with Dru and almost kill her until Spike comes along and stops her. When she finds out Spike is in fact happy the way he is, she lets Dru be, not wanting her Brother to be sad. Spike convinces her to come to their side and help them to kill Buffy. They do not turn her to a vamp. Her being able to
be in day light help them a lot.
 
What she looks like: She has very long black hair that go down to her knees. Her eyes are dark green. She has very red lips and a very fit body. Her skin is quite white because she almost never walks around in the day time, since she knows her brother walks only at night. Her hair is straight. She usually wears clothes kinda Gypsy like. Usually wears colours like black, blue, purple, dark red or silver. She has a tattoo on her back of a torn plant, it kinda crawls up her back and up around her chest.

She is very pretty, similar to Dru but a little more sane.