Kodi Smit-McPhee
Owen
Chloë Grace Moretz
Abby
Richard Jenkins
The Father
Elias Koteas
The Policeman
Sasha Barrese
Virginia
Dylan Kenin
Larry
Dylan Minnette
Kenny
Jimmy 'Jax' Pinchak
Mark
Nicolai Dorian
Donald
Seth Adkins
High School Kid
Ritchie Coster
Mr. Zoric
Cara Buono
Owen's Mother
Chris Browning
Jack
Rebekah Wiggins
Nurse
Ashton Moio
Lanky Kid
Gwendolyn Apple
Girl in Pool
Brett DelBuono
Kenny's Brother
Colin Moretz
Video Arcade Counterman
Rowbie Orsatti
Scottie Tate
Brenda Wehle
Principal
Galen Hutchison
Football Player #1
Dean Satriano
Football Player #2
Deborah L. Mazor
Day Nurse
Rachel Hroncich
Admitting Nurse