Lady Jessica
The Baron's Doctor
Piter De Vries
Padishah Emperor Shaddam IV
Shadout Mapes
Thufir Hawat
Duncan Idaho
Paul Atreides
Princess Irulan
Reverend Mother Ramallo
Stilgar
Baron Vladimir Harkonnen
Nefud
Reverend Mother Gaius Helen Mohiam (as Sian Phillips)
Duke Leto Atreides
The Beast Rabban (as Paul Smith)
Gurney Halleck
Feyd Rautha
Doctor Wellington Yueh
Doctor Kynes (as Max Von Sydow)
Alia (as Alicia Roanne Witt)
Chani
Orlop
Otheym (as Honorato Magalone)
Jamis
Harah
Bene Gesserit Sister (uncredited)
Little Fremen Boy (uncredited)
Fremen (uncredited)
Guard, House Atreides (uncredited)
Czigo (uncredited)
Bit Part (uncredited)
Imperial General (uncredited)
Harkonnen's Victim (uncredited)
Spice Worker (uncredited)
Fremen Boy (uncredited)
Kinet (uncredited)
Palace Maid (uncredited)
Elderly man (uncredited)
Narrator: TV version (uncredited)
Fremen Girl (uncredited)
Fedaykin Fighter (uncredited)
Lady Jessica's Maid (uncredited)