Gavin O'Connor Director, Screenwriter, Producer Joel Edgerton Brendan Actor Tom Hardy Tommy Actor Nick Nolte Paddy Actor Jennifer Morrison Tess Actor Frank Grillo Frank Campana Actor Kevin Dunn Principal Zito Actor Maximiliano Hernandez Colt Boyd Actor Bryan Callen Self Sam Sheridan Self Kurt Angle Koba Actor Erik Apple Pete "Mad Dog" Grimes Actor Denzel Whitaker Stephon Actor Fernando Chien Fenroy Actor Jake McLaughlin Mark Bradford Actor Anthony Tambakis Screenwriter Cliff Dorfman Screenwriter Greg O'Connor Producer Michael Paseornek Executive Producer Lisa Ellzey Executive Producer David Mimran Executive Producer Jordan Schur Executive Producer John J. Kelly Executive Producer Masanobu Takayanagi Cinematographer John Gilroy Film Editing Sean Albertson Film Editing Matt Chesse Film Editing Aaron Marshall Film Editing Mark Isham Original Music Dan Leigh Production Design James Donahue Art Director Ron von Blomberg Set Decoration Abigail Murray Costume Design Randi Hiller Casting