I have a suggestion or two.

A. Grace is fighting all by herself, so a little interaction would be nice.
B. Alteral is also fighting by himself, but he already had interaction so I'm not worried.
C. Luna and Esa are fleeing over the rooftops, and as a bonus they're both also half beast Hakedians.
D. Like Ursa said, Skendar and Luka are all alone, but I would stay away from Skendar.
E. One of Witch's characters is doing something or other, but I haven't been paying attention to him.

Ok I lied, that's more than two. I think everyone else already has people to interact with.