Ezra Miller

Robert

Jeremy Allen White

Dave

Emory Cohen

Trevor

Michael Stuhlbarg

Mr. Burke

Rosemarie DeWitt

Miss Vogel

Addison Timlin

Amy

David Costabile

Mr. Anderson

Dariusz M. Uczkowski

Peter

Gary Wilmes

Mr. Virgil

Lee Wilkof

Mr. Wiseman

Paul Sparks

Detective Eclisse

Bill Raymond

Mr. Williams

Alexandra Neil

Gloria Talbert

Mark Zeisler

Tom Talbert

Christopher McCann

Mr. Ullman

Byrdie Bell

Cherry Dee

Mary Michelson

Talbert Twin

Carly Michelson

Talbert Twin

Rebecca Boughton

Broken Glass Girl 1

Anna Maliere

Broken Glass Girl 2

Dani Baum

Broken Glass Girl 3

Julian Branciforte

Freshman Student

Marta Miller

Robert's Mom (voice)

Annette Foisy

Nurse

Paige Billings

AV Class Girl

Tony Costagliola

Senior Druggie

Cameron Ward

Boys Dorm Head

Richard White

Dave's Dad in Car

Christopher Brisson

Security Guard

Mackenzie Deary

Chapel Student

Will Child

Chapel Teacher

Javier Alvarez

Math Teacher

Ephraim Adamz

Screaming Senior

Robert Malitsky

Screaming Senior

Robert M. Saunders

Screaming Senior

Andrew Corkin

Screaming Senior

Laura Boucher

Robert's Memorial Video

Rosamund Dunn

Robert's Memorial Video

Timothy Dreary

Robert's Memorial Video

Mike Thomas

Robert's Memorial Video