| Name | Character | Episodes |
|---|---|---|
| Cedrick Cooper | Staff Sgt. McKinnon | 8 |
| Anthony Marble | Harlan | 8 |
| Max Parker | Sgt. Sullivan | 8 |
| Vera Farmiga | Barbara Cope | 1 |
| Zach Roerig | Sgt. Knox | 1 |
| Miles Heizer | Cameron Cope | 1 |
| Ana Ayora | Capt. Fajardo | 1 |
| Joy Osmanski | Ji-Yeong | 1 |
| Nicholas Logan | Sgt. Howitt | 1 |
| Kieron Moore | Slovacek | 1 |
| Rico Paris | Santos | 1 |
| Angus O'Brien | Hicks | 1 |
| Johnathan Nieves | Ochoa | 1 |
| Brandon Tyler Moore | Cody Bowman | 1 |
| Blake Burt | John Bowman | 1 |