Watching Dune 1984 right now, that one Harkonnen guy looks just like Richard Burton. He doesn't have a big part, he's just standing there watching Baron Harkonnen pull that kids heart plug out and molest him
I know purists hate that movie, but set design and costuming in that film is awesome. Honestly, if you watch it without the dune novel background, it's really a fun watch.
I saw it in '84 with one of my Free AMC Movie passes I got for being a paperboy (benefits! even though it said "No Passes", the theater girl said "you can use them"...