| Logan Lerman | Charlie |
| Emma Watson | Sam |
| Ezra Miller | Patrick |
| Mae Whitman | Mary Elizabeth |
| Kate Walsh | Mother |
| Dylan McDermott | Father |
| Melanie Lynskey | Aunt Helen |
| Joan Cusack | Dr. Burton |
| Paul Rudd | Mr. Anderson |
| Nina Dobrev | Candace |
| Adam Hagenbuch | Bob |
| Johnny Simmons | Brad |
| Erin Wilhelmi | Alice |
| Reece Thompson | Craig |
More The Perks of Being a Wallflower Pictures
Socially awkward teen Charlie is a wallflower, always watching life from the sidelines, until two charismatic students become his mentors. Free-spirited Sam and her stepbrother Patrick help Charlie discover the joys of friendship, first love, music and more, while a teacher sparks Charlie's dreams of becoming a writer. However, as his new friends prepare to leave for college, Charlie's inner sadness threatens to shatter his newfound confidence.