Leto II is the son of Paul Atreides and Chani, twin brother of Ghanima. Like his father, Leto possesses prescient vision. His role in the Dune saga is one of the most extraordinary in science fiction.

Paul Atreides is the central figure of the Dune saga - the son of Duke Leto Atreides and the Bene Gesserit Lady Jessica, heir to one of the great noble houses of the Imperium. Trained from childhood in combat, politics, and the mental disciplines of both the Bene Gesserit and Mentat traditions, Paul carries the weight of prophecies he did not ask for, including the Bene Gesserit dream of a male Kwisatz Haderach. When House Atreides is granted stewardship of the desert planet Arrakis, sole source of the spice melange, Paul is drawn into a web of imperial politics, Fremen mythology, and visions he can neither fully understand nor escape. Herbert uses Paul across the saga to explore the catastrophic consequences of messianic leadership.

Duncan Idaho is a loyal Atreides swordmaster, one of the finest fighters in the Imperium and deeply devoted to Duke Leto and his family. Trained by the Ginaz Swordmasters, Duncan combines exceptional combat ability with a charismatic personality and genuine warmth. He serves as weapons instructor to Paul Atreides and acts as the Duke's ambassador to the Fremen.

A Tleilaxu-crafted ambassador sent to the court of the God Emperor Leto II - designed to be irresistible to him. Hwi is gentle, sincere, and genuinely good, which makes her the most dangerous weapon the Tleilaxu have ever created, because Leto's feelings for her are real.

Majordomo to the God Emperor Leto II and father of Siona. A descendant of the Atreides line who has served the Worm for decades, Moneo is loyal, competent, and terrified - a man who understands enough of his master's vision to obey but not enough to find peace.

A devout Fish Speaker agent secretly loyal to Leto II, planted inside Siona's rebel group with orders to obey Siona in all things. Large and powerfully built, she carries a real crysknife from Stilgar's household given to her by Leto himself.

Bene Gesserit Reverend Mother and secret Mentat sent to investigate the Ixian situation

A descendant of the Atreides line and leader of a rebel movement against the God Emperor. Siona possesses a genetic trait that makes her invisible to prescience - exactly the quality Leto II has spent three thousand years breeding for, even as she fights to destroy him.

Guide at Tuono Village

Former Ixian Ambassador to the God Emperor's court. Uncle of Hwi Noree, and believed to be involved in her creation within an Ixian experimental machine. A charming, complex and cruel man who was eventually expelled from Leto's court. He went underground and is identified by Leto as the mastermind behind attacks on the God Emperor, including the Embassy bombing.

Bene Gesserit Reverend Mother and Truthsayer, attending the Festival alongside Anteac. Young, with the sensuous oval features of the Jessica-type.

A Bene Gesserit sister who accompanied Leto on a peregrination and served as his messenger to the Sisterhood. She preserved his private words in a secret record. She later died during her attempt to achieve Reverend Mother status due to melange incompatibility.

Minor character in God Emperor of Dune