Miles Teller as Adam Schumann

Haley Bennett as Saskia Schumann

Joe Cole as Billy Waller

Amy Schumer as Amanda Doster

Beulah Koale as Tausolo "Solo" Aieti

Scott Haze as Michael Adam Emory

Keisha Castle-Hughes as Alea

Brad Beyer as Sergeant James D. Doster

Omar J. Dorsey as Dante

Kate Lyn Sheil as Bell

Hunter Burke as Jake Schumann

Erin Darke as Tracey

Allison Gabriel as Linda Sanders

Dennis L.A. White as Jay

Deneen Tyler as Patty Walker

Jayson Warner Smith as Receptionist at a Veterans Affairs Office

Sean P McGoldrick as Private Chris Kyle Jr.

Kerry Cahill as Will's Mom

Jake Weber as Colonel Plymouth

Michael Love Toliver as Iraq War Veteran (uncredited)