Don't hate, love it. Proud Harry Potter fan since '06. Read the books in '09, and the movies and books are different a bit with some forgotten scenes.
First we have Daniel Radcliffe as Harry Potter:
Rupert Grint as Ron Weasley:
Emma Watson as Hermione Granger:
^ Those three are known as the "Golden Trio."
Tom Felton as Draco Malfoy:
Matthew Lewis as Neville Longbottom:
Oliver Phelps as George Weasley:
James Phelps as Fred Weasley: brb gtg cry
Evanna Lynch as Luna Lovegood:
I'll add more students later.
Houses:
Slytherin- A house that values ambition, cunning and resourcefulness. It's emblem is the snake.
Gryffindor- A house that values courage, boldness and chivalry. It's emblem is the lion.
Hufflepuff- A house that values hard work, tolerance, loyalty, and fair play. It's emblem is the badger.
Ravenclaw- A house that values intelligence, creativity, learning, and wit. It's emblem is an eagle.
Professors: (I will update later)
Alan Rickman as Severus Snape: