 | Karl Urban als Sgt. Rock (voice) |
 | Keith Ferguson als Lt. Shrieve (voice) |
 | William Salyers als The Iron Major (voice) |
 | Audrey Wasilewski als Nurse (voice) |
| J. M. DeMatteis | Characters |
| Pat Broderick | Characters |
| Matthew Mahoney | Associate Producer |
| Melissa Lohman | Production Manager |
| Rachel Yedam Kim | Assistant Production Manager |
| Sam Register | Executive Producer |
| Bruce Timm | Executive Producer |
| James Krieg | Co-Producer |
| Amy McKenna | Producer |
| Christopher D. Lozinski | Editor |
| Lolita Ritmanis | Original Music Composer |
| Michael McCuistion | Original Music Composer |
| Kristopher Carter | Original Music Composer |
| Wes Gleason | Casting |
| Bruce Timm | Director |
| Kevin Nowlan | Character Designer |
| Louise Simonson | Writer |
| Walt Simonson | Writer |
| Tim Sheridan | Writer |
| Ji Hyeon Choi | Character Designer |
| Choi Hee Jun | Character Designer |
| Moon Sang Ung | Character Designer |
| Park Ga Hee | Background Designer |
| Park Ga Hee | Prop Designer |
| Park Won Hee | Background Designer |
| Park Won Hee | Prop Designer |
| Oh Jin Hwan | Prop Designer |
| Oh Jin Hwan | Background Designer |
| Park Yun Ju | Color Designer |
| James Peters | Color Designer |
| Kim Sung Hun | Storyboard Artist |
| Kim Sun Min | Storyboard Artist |
| Park So Yung | Storyboard Artist |
| Christina Sotta | Storyboard Artist |
| Matthew Girardi | Animation Technical Director |
| Kent Butterworth | Animation |
| Timothy N. Ryan | Animation |
| Han Cheong Il | Animation Director |
| Greg Emerson | Other |
| Brittany Canasi | Post-Production Manager |
| Rebecca Unger | Post-Production Manager |
| Mark A. Keatts | Supervising Dialogue Editor |
| Mark A. Keatts | Supervising ADR Editor |
| David M. Cowan | Dialogue Editor |
| David M. Cowan | ADR Editor |
| Patrick J. Foley | Dialogue Editor |
| Patrick J. Foley | ADR Editor |
| Kelly Ann Foley | Dialogue Editor |
| Kelly Ann Foley | ADR Editor |
| Michael Garcia | Dialogue Editor |
| Michael Garcia | ADR Editor |
| Darren Griffiths | Online Editor |
| Harrison T. Barth | Assistant Editor |
| Matt Hanchey | Assistant Editor |
| Gabriel Gianola | Assistant Editor |
| Frances E. Chang | Administration |
| Yadira Davis | Production Accountant |
| Maral Simonian | Production Accountant |
| Debbie Lindquist | Production Accountant |
| Athena Wingate | Production Accountant |
| Bobbie Page | Production Supervisor |
| Ed Adams | Production Manager |
| Peter Gerard Dunphy | Executive In Charge Of Production |
| Brian E.S. Jones | Executive In Charge Of Production |
| Liz Carroll | Administration |
