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 King
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)