Would anyone here really consider Mrs. Puff, Pearl, and Karen to be main characters? I feel like as of late these three are in episodes much more frequently. I would still consider them secondary/supporting characters myself, and remain in the mindset that the 7 most recognizable characters stand alone as "main". Apparently the showrunners have updated model sheets over the years on which characters are considered main (Gary and Plankton have been added in that time). Thoughts? While you're at it, share your opinions about Pearl, Mrs. Puff, and Karen.