The Roommate
When Sara, a young design student from Iowa, arrives for college in Los Angeles, she is eager to fit in and get to know the big city. Her wealthy roommate, Rebecca, is more than eager to take Sara under her wing and show her the ropes. The two become close, but when Sara begins to branch out and make more friends on campus, Rebecca becomes resentful. Alarmed, Sara moves in with her new boyfriend, causing Rebecca's behavior to take a violent turn.
Leighton Meester
Rebecca Evans
Minka Kelly
Sara Matthews
Cam Gigandet
Stephen
Aly Michalka
Tracy
Danneel Ackles
Irene
Frances Fisher
Rebecca's Mom
Tomas Arana
Rebecca's Dad
Billy Zane
Professor Roberts
Nina Dobrev
Maria
Matt Lanter
Jason
Kat Graham
Kim
Johannes Raassina
Band Member
Cameron Fisher Brousseau
Band Member
Evan Michael Brown
Band Member
Alex Meraz
Frat Boy
Jerrika Hinton
Girl Student
Jennifer Cadena
Dorm R.A.
Adam Saunders
Handsome Guy
Cory Tucker
Club Bartender
Will McFadden
Club Guy
Munda Razooki
Club Guy
Ryan Doom
Rick
Carrie Finklea
Bookstore Girl
Andrej Nagy
Older Designer
Ashleigh Falls
Make-Up Girl
Jacqueline Mazarella
Woman Professor
Nathan Parsons
Coffee Shop Cashier
Elena Franklin
Maria's Girlfriend
Lauren Storm
Maria's Girlfriend
Stacy Barnhisel
Librarian
Cherilyn Wilson
Frat Party Girl
A.J. Hunt
Tattoo Artist
G.O. Parsons
Mocha Kid
Brian David Miller
Frat Bouncer
Jake Perry
Slacker Co-Worker
Cayla Korven Cauble
Tracy's Friend
Lauren Alfano
Samantha Tangent (uncredited)