There are 4 characters in book 1, 2, 3, 4 and 6. In the 5th book Becca comes in. The 4 characters are Emma, Megan, Jess and Cassidy.
This is a summary of each character. (Except Becca)
Cassidy Sloane: A hockey player who doesn't care less about fashion.
Emma Hawthorne : A homebody who is a total bookworm
Jess Delaney: A super genius animal lover who has a singing voice of an angel.
Megan Wong: A total fashionista who couldn't care less about school.
Becca Chadwick: A kind of mean girl who loves fashion and boys.