Yes, this might be true, but there is no obvious evidence that she has a twin. it does say she does have one in the books but they are not going straight by the books! so lets see what happens next!!:)
yes. Her twin sister is Courtney. Who is kept a secret because she has mental problems
yes in the book
Yes, Courtney and Courtney is the one that is dead not Allison.
Yes...
Ali has a twin sister named Courtney who is mentally ill. The 4 girls (Spencer, Aria, Emily, and Hanna) only knew Courtney (even thought they thought they knew Ali) because she pretended to be Ali.
In the books she does , but no one knows for sure in the tv show series
So far in the television show they have made no reference to Allison having a twin so i believe they are not going to include that in the story line.
Yes she does. (:
Yes, she actually did have a twin sister. Though some people believe she doesn't, but she actually does!
Yes! Her name is Courtney.
alison did
Mona and Alison's identical twin
yes
Alison never talked about her twin
Mona and Alison's identical twin
Yes. Alison had a twin sister named Courtney.
Courtney is alison's twin sister, who pretended to be her
Yes
Because the Pretty Little Liars weren't actually her friends. Courtney, (Alison's twin sister) made friends with them. Alison had nothing to do with them. So she's mad and tries to kill them.
In the last book...Wanted.
Jenna knows about Alison's secret twin. --A
No the girls do not know.