This page lists the notable crew members of the Special Investigations Unit 4 and available positions.
| Name | Position | Player | Notes |
|---|---|---|---|
| Araiah | Lieutenant/Chief of Unit Four | NPC | |
| Yoketsumaru Gertrude | Agent | Riko | |
| Tamayamo Sashi | Investigator | Lam | |
| Sera Aphoris | Officer | Tanka001 | |
| Andrea Carver | Inspector | ShotJon | |
| Hamada Shizu | Inspector | Gallant | Inactive |
Unit Four is currently open for applications.