| Acorian Zealot |
Aliens |
| Aieryn |
Civilians |
| Alcannan |
Aliens |
| Ambria |
Aliens |
| Anderson, Admiral G. |
Starfleet Officers |
| Anera, Lieutenant JG (male) |
Starfleet Officers |
| Ardonus |
Aliens |
| Ares |
Aliens |
| Ari |
Aliens |
| Arkin, Allayah Shayna |
Starfleet Officers |
| Arnet, Jonathon H. |
Civilians |
| Arnet, Thomas Anthony |
Starfleet Officers |
| Arnet, Thomas Anthony (alt.) |
Starfleet Officers |
| Arnor |
Aliens |
| Assel, Katrina |
Civilians |
| Assel, Vant |
Civilians |
| Atherton, Admiral |
Starfleet Officers |
| Attin, General |
Aliens |
| Æthelred the Sixth |
Aliens |
| Bachman, Ensign |
Starfleet Officers |