| Captain | Aramsham | The Sardaukar Captain. |
| Jessica | Atreides | Paul's mother. A bene gesserit lady. |
| Leto | Atreides | The Duke. Paul's father. |
| Paul | Atreides | Jessica's son. Aka: Muad'dib, Usul, Duke of Arrakis. |
| Lingar | Bewt | The water-shipper. |
| Staban | Buek | The smuggler's son. |
| Piter | de Vries | Vladimir's nephew. |
| | Dr. Kynes | The imperial paleontologist. |
| Hasimir | Fenring | The Count. One of the deadliest fighters in the imperium. |
| Margot | Fenring | Count Fenring's wife. Aka: Lady Fenring. |
| Gurney | Halleck | One of Duke Leto's men. |
| Vladimir | Harkonnen | The baron. |
| Thufir | Hawat | The Master of Assassins of Paul's father. |
| Duncan | Idaho | One of Duke Leto's men. |
| Umman | Kudu | The Captain of Baron's personal guard. |
| Little | Leto | Paul's son. |
| Shadout | Mapes | The head housekeeper. |
| Gaius Helen | Mohiam | Jessica's former teacher. The Emperor's truth-sayer. Aka: Reverend Mother. |
| Iakin | Nefud | The Guard corporal. |
| Princess | Royal | The Emperor's daughter. |
| Padishah Emperor | Shaddam IV | The Emperor. |
| Esmar | Tuek | The smuggler. |
| Dr. Wellington | Yueh | Paul's teacher. |
| Alia | | Paul's sister. |
| Arkie | | The bond of water. |
| Chani | | Liet-Kynes's daughter. Paul's wife. |
| Czigo | | The little bearer. |
| Farok | | One of Stilgar's colleagues. |
| Feyd-Rautha | | Vladimir's niece. |
| Garrote | | The slave master. |
| Geoff | | Harah's ex-lover. |
| Gurney | | Paul's grandfather. |
| Harah | | Jamis' girlfriend. Paul's servant. |
| Jamis | | The man Stilar confronted. |
| Kaleff | | The natural son of Geoff. |
| Kinet | | The tropper. |
| Korba | | One of Paul's Fedaykin Lieutenants. |
| Lemil | | One of the Fremens. |
| Orlop | | The natural son of Jamis. |
| Ramallo | | The reverend mother. |
| Sardaukur | | One of the antagonists. |
| Scarface | | One of Baron's allies. |
| Shishakli | | Squad leader of Fedaykin. |
| Shoah | | Tharthar's brother. |
| Sihaya | | The desert spring. |
| SooSoo | | Financial adviser to the water-peddlers union. |
| Stielgar | | The Chief of Sietch. A fremen leader. |
| Stilgar | | The fremen. |
| Tharthar | | One of Stilgar's wives. |
