Parallel could be called the "big bad" of "season 1." I wouldn't say he's Acute's foil exactly, but he's a good indicator of how Acute probably could have turned out if both his parents had been Moon Rabbits and he hadn't been born on The Planet Below.
Like Iso, I drew him like this to work out where all his stripes would go. He usually wears a nice suit.
Campfire: https://www.campfirewriting.com/write/public/element/characters/character/678c6dc2555c462a1537f07b