| Name | Character | Episodes |
|---|---|---|
| Shelley Calene-Black | Dr. Halsey | 3 |
| Yumi Touma | Cortana | 2 |
| Shelley Calene-Black | Cortana | 2 |
| Akio Otsuka | ONI Commander | 1 |
| Atsuko Tanaka | Dr. Halsey | 1 |
| Kikuko Inoue | Han | 1 |
| Tomokazu Seki | Brother | 1 |
| Yasunori Matsumoto | Captain | 1 |
| Keiji Fujiwara | Sarge | 1 |
| Kenji Akabane | Soldiers | 1 |
| Kazuhiko Inoue | The Prophet | 1 |
| Kenta Miyake | Sergeant Hauser | 1 |
| Ai Maeda | Cortana | 1 |
| Masashi Ebara | Captain | 1 |
| Tomoko Kaneda | LAN | 1 |
| Luci Christian | Kelly | 1 |
| Luci Christian | Female Soldier | 1 |
| Deke Anderson | 1337 | 1 |
| David Anthony Matranga | Joseph | 1 |
| David Anthony Matranga | Sarge | 1 |
| Justin Doran | Soldier | 1 |
| Brittney Karbowski | Sister | 1 |
| Jovan Jackson | Soloman | 1 |
| John Swasey | Captain | 1 |
| Andy McAvin | Boatman | 1 |
| Andy McAvin | Captain | 1 |