Reddas was my favourite, though Larsa was pretty good as well. I was generally unimpressed with Vossler.

Quote Originally Posted by Roto13 View Post
EXP drain? Guest characters don't take any EXP.
The total amount of EXP gained from killing a monster is divided amongst all party members - even if one of them can't actually level. It's correct that they don't "gain" anything, your guys just get less because there's +1 to the normal active party.