Pittsburgh, Pennsylvania, 1991. High school freshman Charlie is a wallflower, always watching life from the sidelines, until two senior students, Sam and her stepbrother Patrick, become his mentors, helping him discover the joys of friendship, music and love.
Logan Lerman Charlie
Emma Watson Sam
Ezra Miller Patrick
Mae Whitman Mary Elizabeth
Kate Walsh Mother
Dylan McDermott Father
Melanie Lynskey Aunt Helen
Nina Dobrev Candace
Johnny Simmons Brad
Joan Cusack Dr. Burton
Paul Rudd Mr. Anderson
Nicholas Braun Ponytail Derek
Reece Thompson Craig
Patrick de Ledebur Senior Bully
Brian Balzerini Linebacker
Tom Kruszewski Nose Tackle
Julia Garner Susan
Tom Savini Mr. Callahan
Emily Marie Callaway Mean Freshman Girl
Chelsea Zhang Shakespeare Girl
Jesse Scheirer Freshman Boy
Justine Nicole Schaefer Twin Girl #1
Julie Marie Schaefer Twin Girl #2
Leo Miles Farmerie 7-Year-Old Charlie
Isabel Muschweck 9-Year-Old Candace
Adam Hagenbuch Bob
Erin Wilhelmi Alice
Jordan Paley Rocky MC
Zane Holtz Chris
Timothy Breslin Policeman
Mark McClain Wilson Emergency Room Policeman
Atticus Cain Emergency Room Doctor
Stacy Chbosky Young Mom
Dihlon McManne Priest
Laurie Klatscher School Principal
Landon Pigg Peter
Jennifer Enskat Sam's Mom
William L. Thomas Patrick's Dad
Morgan Wolk Candace's Friend
Joe Fishel Father of Twin Girls (uncredited)