| Andrew Garfield | .... | Desmond Doss |
| Richard Pyros | .... | Teach |
| Jacob Warner | .... | James Pinnick |
| Milo Gibson | .... | Lucky Ford |
| Darcy Bryce | .... | Young Desmond |
| Roman Guerriero | .... | Young 'Hal' Doss |
| James Lugton | .... | Hiker |
| Kasia Stelmach | .... | Hiker's Friend |
| Hugo Weaving | .... | Tom Doss |
| Rachel Griffiths | .... | Bertha Doss |
| Jarin Towney | .... | Teenage Boy |
| Tim McGarry | .... | Local Man |
| Tyler Coppin | .... | Lynchburg Doctor |
| Teresa Palmer | .... | Dorothy Schutte |
| Richard Platt | .... | Flirting Hospital Soldier |
| Nathaniel Buzolic | .... | Harold 'Hal' Doss |
| Laura Buckton | .... | Cinema Kissing Sweetheart |
| Anthony Rizzo | .... | Cinema Kissing Soldier |
| Simon Edds | .... | MP Gibbs |
| Thatcher McMaster | .... | Company B Soldier |
| Charles Jacobs | .... | Private Webb |
| Dennis Kruesler | .... | Sergeant Amos |
| Firass Dirani | .... | Vito Rinnelli |
| Michael Sheasby | .... | Tex Lewis |
| Luke Pegler | .... | Hollywood Zane |
| Ben Mingay | .... | Grease Nolan |
| Luke Bracey | .... | Smitty Ryker |
| Nico Cortez | .... | Wal Kirzinski |
| Goran D. Kleut | .... | Ghoul |
| Harry Greenwood | .... | Henry Brown |
| Damien Thomlinson | .... | Ralph Morgan |
| Ben O'Toole | .... | Corporal Jessop |
| Vince Vaughn | .... | Sgt Howell |
| Andrew Sears | .... | Private Maguire |
| Jim Robison | .... | Private Bates |
| Nathan Baird | .... | Private Green |
| Sam Wright | .... | Private Dixon |
| Mikael Koski | .... | Private Giles |
| Troy Pickering | .... | Private Tyler |
| James Moffett | .... | Private Lewis |
| Sam Worthington | .... | Captain Glover |
| Josh Dean Williams | .... | Private Perry |
| Richard Roxburgh | .... | Colonel Stelzer |
| Andrew Hansch | .... | Bugle Player |
| John Cannon | .... | Corporal Cannon |
| Robert Morgan | .... | Colonel Sangston |
| Helmut Bakaitis | .... | Minister |
| Georgia Adamson | .... | Receptionist |
| Bill Young | .... | General Musgrove |
| Benedict Hardie | .... | Captain Daniels |
| Philip Quast | .... | Judge |
| James Mackay | .... | Prosecutor |
| Ryan Corr | .... | Lieutenant Manville |
| Sam Parsonson | .... | 96th Soldier Bob |
| James O'Connell | .... | 96th Soldier Page |
| Ori Pfeffer | .... | Irv Schecter |
| Craig Reeves | .... | Climbing Soldier |
| Adrian Twigg | .... | Soldier - Death Throes |
| Sean Lynch | .... | Popeye |
| Luke McMahon | .... | Stretcher Bearer |
| Bill Thompson | .... | Wounded Soldier |
| William Temm | .... | Firing Japanese Soldier #1 |
| Kazuaki Ono | .... | Firing Japanese Soldier #2 |
| Thomas Unger | .... | Stretcher Bearer |
| Eric Taugherbeck | .... | Wounded Private O'Conner |
| Hayden Geens | .... | Wounded Private Blake |
| Edward Ned Law | .... | Rescued Private Horvath |
| Kazuki Yuyama | .... | Corpse With Rats #2 |
| Daisuka Takeda | .... | Corpse With Rats #3 |
| Raphael Dubois | .... | Corpse with Rats #4 |
| Tim Potter | .... | Soldier Hank |
| Santo Tripodi | .... | Soldier Carl |
| Matt Nable | .... | Lt Colonel Cooney |
| Laurence Brewer | .... | Head Doctor |
| John Batziolas | .... | Rescued Private Schulenburg |
| Nobuaki Shimamoto | .... | Japanese Officer |
| Hiroshi Kasuga | .... | Japanese Hanging Soldier |
| Ryuzaburo Naruse | .... | Injured Japanese in Tunnel |
| Hisataka Uematsu | .... | Reacting Japanese Soldier #2 |
| Adam Bowes | .... | Rescued Wounded Leg Soldier |
| Michael Hennessy | .... | Rescued Private Moran |
| Benjamin McCann | .... | Rescued Private Saareste |
| Yukihiro Nagashima | .... | Rescued Japanese Soldier |
| Takehiro Abe | .... | Japanese Sniper |
| Daniel Thone | .... | Stretcher Bearer |
| Nathan Halls | .... | Private Tillson |
| Nicholas Cowey | .... | Private Gregan |
| Charles Upton | .... | Scared Military Officer |
| Yoji Tatsuta | .... | Japanese General |
| Toshiyuki Teramoto | .... | Surrendering Soldier |
| Honsen Haga | .... | Japanese General's Assistant |
| Chris Bartlett | .... | Private Baudour (uncredited) |
| Jake Bennett | .... | company B Soldier (uncredited) |
| Jeremy Costello | .... | 96th Battalion G.I (uncredited) |
| Wez Debono | .... | US Army Company B 1177 (uncredited) |
| Desmond T. Doss | .... | Himself(archive footage) (uncredited) |
| Harold Doss | .... | Himself(archive footage) (uncredited) |
| Akira Fujii | .... | Japanese Soldier (uncredited) |
| Mark Gadaleta | .... | Officer (uncredited) |
| Jack Glover | .... | Himself(archive footage) (uncredited) |
| Daniel Keen | .... | Military Police / 96th Battalion (uncredited) |
| Dragon Oli Lee | .... | Japanese Gunner (uncredited) |
| Jason Pugh | .... | 96th Battalion G.I (uncredited) |
| Milan Pulvermacher | .... | Billy Bob (uncredited) |
| Jim Punnett | .... | Japanese Soldier (uncredited) |
| Sam Romain | .... | US Medic (uncredited) |
| Matt Scaletti | .... | US Army Soldier (uncredited) |
| Glen Snow | .... | 96th Battalion Soldier (uncredited) |
| Andrew Wang | .... | Japanese Soldier (uncredited) |
| Michael Adam Welsh | .... | 96th Battalion Soldier (uncredited) |