axlanian your initial test dialogue has a raw energy to it so I think your main sinister voice might work best for either the character with the most dialogue or the character with the first dialogue.
I really like this one line from idir_hh: (spoken in a disgusted voice)
“Kylo Ren’s little pet is close. I can feel her presence.”
Instead of still chasing the girl, Ben maybe:(spoken in a rage) “You betray us? For a girl from nowhere!”