^I agree with that.
*looks up Robert de Niro on IMDB*
Okay, second thought, I think Robert De Niro (the guy who played Captain Shakespeare in Stardust, LOL
) would be a great Fassad.
I also nominate Christopher Lloyd (the Back-to-the-future scientist, if I'm correct) as Dr. Andonuts.
But besides that, I think that small-name is the way to go. The people in Mother 3 are really well-developed characters, and it's not fair to cover up the characters with famous names. We want people to say "Whoever played Duster was amazing," instead of "Yeah, [actor] was really, really good in it, but I kept thinking of the character he played in [other famous film]. It was so distracting."
I also looked up famous twin actors, and I couldn't find anybody in the age range of Lucas and Claus who I'd actually ever heard of. If Mother 3 ever gets turned in a movie, I really hope the creators find some STELLAR actors to play Lucas and Claus. AND they have to be twins. I wouldn't want to be that casting director, I'll say that much.