*sigh*
The Troll is already there as it seems...
I understand you all like the idea Benny is an orc, but would it be impossible for you guys to accept the hypothesis that maybe the first tought "She's green = orc" is wrong, and
think about this:
She is somehow tall (tough she's female so not as tall as male Trolls), REALLY slender (remember, female orcs look like wrestlers...), she has 3 finger per hand -without any sign of amputation (and also look morphogically like no more finger could have been added to them)-; same for her two toes.
And finally, she's a priestes,, wich Trolls can easily be without having to complicate your life thinking about how the rules are or are not bended.
Also, Orcs, in LFG, look like those merry fellows here:
Benny (

) has white eyes while the orcs have them red or yellow, funky hair color, a neck XD, really paler shade of green, long nose, etc. etc.
She also has, if you ask me, more of a Troll personality: she's sly, clever, talkative and profits of people like Cale to protect her while she laugh at the situation.
Orcs have honor and quite a more physicaly-violent behavior.
So yeah, she is not extremely tall, but the fact she's not muscular at all strikes more the eyes, actually...
Now, as a ending note, those are the facts I present you to prove my point, I am not forcing them on you with a giant hammer; but I ask you consider them with your logic and come to a conclusion.
Thank you.

Now, as for another character, I don't really think anyone will be added to the main cast, but maybe recurring secondary characters would appear. In that case, I'd like another female character; but one with, like, some decent clothing and a badass attitude or something. lol XD
And as it seems everyone understand the same language, maybe some Alliance (woe is them!) characters could be introduced...