Sean McNamara Director David Arquette Captain Henry A. DuPont Actor Keith David Old Judge Actor Jason Isaacs John C. Breckinridge Actor Tom Skerritt Ulysses S. Grant Actor Luke Benward John Wise Actor Max Lloyd-Jones Sam Atwill Actor Lauren Holly Mrs. Clinedinst Actor Zach Roerig Jack Stanard Actor Josh Zuckerman Moses Ezekiel Actor Nolan Gould Robert, Sir Rat Actor Sean Marquette Benjamin "Duck" Colonna Actor Gale Harold Major Charles Semple Actor Parker Croft Garland Jefferson Actor Courtney Gains Capt. Chinook Actor Mary Mouser Libby Clinedinst Actor Werner Daehn Gen. Franz Sigel Actor Thomas F. Farrell II Screenwriter, Producer David M. Kennedy Screenwriter, Producer Brandon K. Hogan Executive Producer Brad Shield Cinematographer Jeff Canavan Film Editing Dawn R. Ferry Production Design Frederik Wiedmann Original Music