Logan Lerman as Marcus Messner

Sarah Gadon as Olivia Hutton

Tracy Letts as Dean Caudwell

Linda Emond as Esther Messner

Joanne Baron as Mrs. Greenberg

Ben Rosenfield as Bertram Flusser

Philip Ettinger as Ron Foxman

Pico Alexander as Sonny Cottler

Noah Robbins as Marty Ziegler

Danny Burstein as Max Messner

Susan Varon as Mrs. Dadidovich

Bryan Burton as Ben

Steven Kaplan as Anker

Richard Topol as Mo Greenberg

Isabel Keating as Miss Clement

Eli Gelb as David

Margo Kazaryan as Student

Doris McCarthy as Church Volunteer

Melanie Blake Roth as Student

Andrew S. Thompson as Student

Bo Stansell as Young Nurse

Bryan Fitzgerald as History Student

Betsy Hogg as Sophomore Girl

Rebecca Watson as College Nurse

Will MacAdam as Family Friend at Shiva & Synagogue

Jason Erik Zacek as Student

KC Coy as College Student

Samuel Dunning as Dead American Soldier

Eliza Foss as Alice

Ruth Flaherty as Church Matron

Tom Bair as President Wentz

Sam Rohloff as Dead American Soldier

Neal Arluck as Man In Synagogue