The concubine of Duke Leto and mother of Paul, Lady Jessica is a Bene Gesserit trained woman who defies the order’s breeding program. Her character is characterized by internal conflicts between loyalty and love, practicality, and her role as a guiding figure in the Fremen society.

As the head of the Harkonnen family and the primary antagonist in *Dune*, Baron Vladimir Harkonnen is a power-hungry and hedonistic character known for his ruthless and despicable behavior, marked by ambition and cruelty.

The head of House Atreides, Duke Leto is a compassionate leader of his people who grapples with external political pressures and internal melancholy, aware of the traps laid by his enemies.

The nephew of Baron Harkonnen and a counterpart to Paul Atreides, Feyd-Rautha is groomed for ruthlessness and serves as a foil to Paul, demonstrating the influence of environment over genetics.

A Fremen woman and the love interest of Paul, Chani is a fierce fighter central to Paul’s visions. She plays a pivotal role in Paul’s life, representing the intersection of love and political strategy.

A Mentat serving House Atreides, Thufir Hawat is skilled in military tactics and one of Paul's mentors. Despite his intelligence, he is manipulated by the Harkonnens, which leads to his eventual downfall.

A swordmaster and one of Paul’s mentors, Duncan Idaho plays a critical role in assessing the Fremen as allies and ultimately sacrifices himself to protect Paul and Jessica.

The warmaster for House Atreides and one of Paul’s mentors, Gurney Halleck survives the Harkonnen attack and becomes a leader in spice smuggling before reuniting with Paul.

A leader of a Fremen community, Stilgar provides refuge to Paul and Jessica following the Harkonnen attack, becoming an important ally and figure in the reshaping of Fremen culture under Paul’s leadership.