Kari Wahlgren *Haruhara Haruko FLCL* as Panty. DEFINITELY!! She's got the perfect voice for a b*tch like Panty ; ) i don't see anyone else giving her a better voice.
Mike Mcfarland would be a killer Corset too! too bad we won't hear him until the last few episodes...
after hearing Eric Vale in Desert Punk i'm sure he'd play an excellent Briefs. either him or Todd Haberkorn.
Stocking, i'm not sure...Laura bailey?
I don't think they should give Chuck a V.A. kind of stupid and pointless. it's the same way when they decided to give Xiao Mei *FMA* a v.a. she doesn't talk. she squeaks and doesn't need a v.a. >_> not. needed.
This series is gonna need some FLCL type of translation, it's the only way i can see it working at all.