Stunt Doubles get Co-star billing now?

It depends on where they appear on-screen. In this case the show lists co-stars, stunt doubles (with their character names) and then more co-stars. If they had a separate page listing stunts, they would not have been credited as co-stars.

Well, I thought Bon Bon Chiffon was fabulous..

Sheriff Mike & Deputy Liv have become my favorite part of this show.

I appreciate your Red Letters