| Name | Character | Episodes |
|---|---|---|
| Shohreh Aghdashloo | Chrisjen Avasarala | 1 |
| Joe Pingue | Captain McDowell | 1 |
| Steven Strait | Jim Holden | 1 |
| Frankie Adams | Roberta 'Bobbie' W. Draper | 1 |
| Cara Gee | Camina Drummer | 1 |
| Anna Hopkins | Monica Stuart | 1 |
| Tim Post | Belter | 1 |
| Dominique Tipper | Naomi Nagata | 1 |
| François Chau | Jules-Pierre Mao | 1 |
| Nadine Nicole | Clarissa Mao | 1 |
| Wes Chatham | Amos Burton | 1 |
| Kyle Gatehouse | Gaunt Belter | 1 |
| John Ralston | MCRN Admiral | 1 |
| Vanessa Smythe | Michio | 1 |
| Ted Dykstra | Gareth | 1 |
| Stuart Hughes | Liang Walker (voice) | 1 |
| Samer Salem | Josep | 1 |
| Mercedes Blanche | Robin | 1 |