No is that French from France or French Canadian from Canada? IF French Canadian then i agree make all the evil guys sound like them.

If we made them sound French Canadian then nobody would understand them. Can you imagine?

Irenicus: (blah blah blah blergh)!
PC: What's he saying?
Imoen: No idea.
Irenicus: (blah blah blah blergh arf)!
Minsc: I sense evil!
PC: Shhh! I think he said "hockey"...
Irenicus: (blah grrr maple syrup blah)!
PC: Hmmm. Get the shovel.

(...half-kidding, incidentally...)