We're level 5 now, not sure what our stats are. My brother's character was the wayfarer and mine was the witch.

Now that you mention it, it did seem like early in our game (i.e. at low levels), it worked better: we would both usually be first in the queue, he would summon his wolf, then it would be my turn to summon mine, then both wolves would act.

But in later fights (I'd say once we reached level 3), the wayfarer is usually first in the queue, then some of the enemies, then the witch, followed by a mix of more enemies and the companions. Both wolves will slot in right after the wayfarer, so the wayfarer's wolf gets a turn but the witch's wolf doesn't.

fyi I even put a point into speed for the witch to try to fix the issue, but no luck.