Yes Canderous should be a major non-party member. He could join in a few battles with the party. Yeh we definatly need a fighting alongside Canderous part. I dont know if HK should be a party member or not...
Anyway, just a few ideas to toss around:
a twilek jedi would be nice
definatly another good ole' scoundrel
Maybe a wookie Jedi...this one with an interesting back story unlike the others...if no good back story then no wookie at all.
@patient: my thought exactly, I would have liked to have HM and Disciple. A choice of who we want as far as optional party members would be nice.