Ben Foster as Will Montgomery

Woody Harrelson as Tony Stone

Jena Malone as Kelly

Eamonn Walker as Stuart Dorsett

Samantha Morton as Olivia Pitterson

Steve Buscemi as Dale Martin

Dale Soules as Cashier

Stevie Ray Dallimore as Kelly's Father

Michael Chernus as Alan

Yaya DaCosta as Monica Washington

Marceline Hugot as Mrs. Flanigan

Lindsay Michelle Nader as Claire

Gaius Charles as Recruiter Brown

Brendan Sexton III as Recruiter Olson

Peter Francis James as Dr. Grosso

Halley Feiffer as Marla Cohen

Peter Friedman as Mr. Cohen

Jeremy Strong as Returning Soldier

Fiona Dourif as Returning Soldier's Wife

Kevin Hagan as Mr. Flanigan

Portia as Mrs. Burrell

Lisa Joyce as Emily

Merritt Wever as Lara

Karen Summerton as Flirty Girl (uncredited)