The 35 characters who appeared in all 7 books

        Harry
    Hermione
    Ron
    Ginny
    Neville
    Fred
    George
    Dumbledore
    McGonagall
    Hagrid
    Molly
    Hegwig
    Fang
    Nearly Headless Nick
    Seamus
    Dean
    Snape
    Malfoy
    Crabbe
    Goyle
    Percy
    Peter Pettigrew
    Vernon
    Petunia
    Dudley
    Katie Bell
    Parvati
    Flitwick
    Madame Pomfrey
    Professor Sprout
    Lavender
    Peeves
    Filch
    Mrs Norris
    Fat Lady