Kyle MacLachlan Paul Atreides Francesca Annis Lady Jessica Patrick Stewart Gurney Halleck Linda Hunt Shadout Mapes José Ferrer Padisha Emperor Shaddam IV Leonardo Cimino The Baron's Doctor Freddie Jones Thufir Hawat Brad Dourif Piter De Vries Richard Jordan Duncan Idaho Virginia Madsen Princess Irulan Silvana Mangano Reverend Mother Ramallo Everett McGill Stilgar Sting Feyd Rautha Kenneth McMillan Baron Vladimir Harkonnen Jack Nance Nefud Siân Phillips Reverend Mother Gaius Helen Mohiam Jürgen Prochnow Duke Leto Atreides Paul L. Smith The Beast Rabban Dean Stockwell Doctor Wellington Yueh Max von Sydow Doctor Kynes Alicia Witt Alia Sean Young Chani Danny Corkill Orlop Honorato Magaloni Otheym Judd Omen Jamis Angélica Aragón Bene Gesserit Sister (uncredited) Humberto Elizondo Czigo (uncredited) Kyle MacLachlan Paul Atreides Francesca Annis Lady Jessica Patrick Stewart Gurney Halleck Linda Hunt Shadout Mapes José Ferrer Padisha Emperor Shaddam IV Leonardo Cimino The Baron's Doctor Freddie Jones Thufir Hawat Brad Dourif Piter De Vries Richard Jordan Duncan Idaho Virginia Madsen Princess Irulan Silvana Mangano Reverend Mother Ramallo Everett McGill Stilgar Sting Feyd Rautha Kenneth McMillan Baron Vladimir Harkonnen Jack Nance Nefud Siân Phillips Reverend Mother Gaius Helen Mohiam Jürgen Prochnow Duke Leto Atreides Paul L. Smith The Beast Rabban Dean Stockwell Doctor Wellington Yueh Max von Sydow Doctor Kynes Alicia Witt Alia Sean Young Chani Danny Corkill Orlop Honorato Magaloni Otheym Judd Omen Jamis Angélica Aragón Bene Gesserit Sister (uncredited) Humberto Elizondo Czigo (uncredited) Ricardo Hill (uncredited) Ernesto Laguardia Harkonnen's Victim (uncredited) David Lynch Spice Miner (uncredited) Ana Ofelia Murguía Palace Maid (uncredited) Claudia Ramírez Fremen Girl (uncredited) Margarita Sanz Lady Jessica's Maid (uncredited) Jacqueline Voltaire (uncredited)