The Cast

Trivia

Patrick Stewart replaced Aldo Ray as Gurney Halleck.

Virginia Madsen replaced Anne Louise Lambert as Irulan.

John Hurt was offered the part of Dr Yueh.

Glenn Close was offered the part of Jessica, but turned it down. In an article in Entertainment Weekly she said: "I turned it down [because] there was this scene where they were running away from the big worm or whatever it was and the woman fell down, and everyone had to come back to get her. I said, 'What a cliché. I don't want to be the woman who falls down. I want to be the woman who's running just as fast as everyone else.'"

Helen Shaver also test for the role of Jessica

Tom Cruise, Kevin Costner and Val Kilmer all tested for the part of Paul Atreides.

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House Atreides

	Duke Leto Atreides (Juergen Prochnow)
	Lady Jessica (Francesca Annis)
	Paul Atreides (Kyle MacLachlan)
	Alia Atreides (Alicia Witt)
	Gurney Halleck (Patrick Stewart)
	Duncan Idaho (Richard Jordan)
	Thufir Hawat (Freddie Jones)
	Doctor Wellington Yueh (Dean Stockwell)

House Harkonnen

	Baron Vladimir Harkonnen (Kenneth McMillan)
	Feyd-Rautha (Sting)
	Beast Rabban (Paul Smith)
	Piter De Vries (Brad Dourif)
	Nefud (Jack Nance)

Fremen

	Stilgar (Everett McGill)
	Doctor Liet-Kynes (Max Von Sydow)
	Chani (Sean Young)
	Harah (Molly Wren)
	Shadout Mapes (Linda Hunt)
	Jamis (Judd Omen)
	Fremen Monk

Reverend Mothers

	Reverend Mother Gaius Helen Mohiam (Sian Phillips)
	Reverend Mother Ramallo (Silvana Mangano)
	Three of the Bene Gesserit Sisterhood

House Corrino

	Padishah Emperor Shaddam IV (José Ferrer)
	Princess Irulan (Virginia Madsen)