That is my point then, while he is critical to the show's success, he is different from the others in that they were the creators and stars. He's not less, but that is the difference.

The creators of RR are a larger group, as credited;

Cecily Truett Lancit Larry Lancit Twila Liggett Lynne Ganek Tony Buttino

So not only is Levar not the only credited creator (as is the case with the others) by he is not included in the large collaborative list.

So that's what I think, but you don't have to take, my word for it...