It goes without saying that they're pretty much perfect. But if you could recast any role in one of the Alien films (including the prequels), just for fun, and you had access to every actor/actress living or dead, and at any age, who would you cast and in which film/role?
I was watching some of Gunfight at the O.K. Corral and Birdman of Alcatraz earlier, and I thought it would've been interesting to see Burt Lancaster's version of David. I know Peter O' Toole is someone a lot of people might jump to, but Lancaster had a quiet intensity that I would like to have seen. Although O'Toole would've been interesting as Kane.
I also would like to see a younger Sidney Poitier in some role. Possibly Dallas. Why? Cause he's Sidney freakin' Poitier. I can easily see him in Nostromo gear, layin' down the law.
And of course a younger Anthony Hopkins would have to be considered for Ash. Although Ash's part is such an interesting role, there's just so many good actors I'd like to see attempt it.