I just googled "Michael Caine Thufir Hawat" and got multiple hits LOL.
Replying to: Yes,my mistake;those roles haven't been filled -- Mao Clone	Post Reply Forum

Canis Majoris

04/25/2019, 10:47:12

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Apparently he's been thought of for this role for years.

More interesting possibilities:
Dr. Yueh: Ken Watanabe
Piter DeVries: John Malkovich
Gurney Halleck: Ian McShane, Idris Elba
Shaddam IV: Charles Dance
Leto Atreides I: Sean Bean
Chani: Mackenzie Foy, Shailene Woodley
Feyd Rautha: Michael Fassbender
Count Fenring: Aidan Gillen