Gale is a Necromancer ...
One of his barks states: "How foolish theese mortals are." (Or something among those lines.)
Auntie Ethel vicious mockery for him mentions something about dead flesh under wraps.
Also have you seen his artwork? focus on the arm

Astarion is a Thief ...
I allways claimed and i shall never stop (nope, not even if Swen himself would tell me that im wrong :P ) that Astarion got Rogue bcs its simply the the best class for people who are actually nothing ... dont read this as Rogue = nothing, thats not what i said, it only works other way around ... and since he was just pretty face Noble (but not charismatic enough to be a Bard) ... the only thing he can use in combat is his naturaly better agility and cunning ... ergo, Thief.

Lae'zel is either Battle Master, or Champion ...
I dont know any significant roleplay difference between those, so i cant really decide. Most likely champion tho, since that is title she aspire to.

I agree with OP about Halsin ...

But i still think that Minthara should be a Cleric and really hope they revert her class back in 1,0.
So i would give her either War, or Trickery.

Minsc seems like Beast Master ...
Even tho its just single beast, one cant argue he didnt mastered it. laugh


I still dont understand why cant we change Race for our hirelings. frown
Lets us play Githyanki as racist as they trully are! frown