Forum:Categories for individual characters

What is the method for putting articles into the categories for individual characters? For example, I've noticed that Jeremy Johnson is not only put under his category but under Candace's and Stacy's also. We need to get some criteria for these categories so that every page doesn't have a category of every other character that's mentioned on it. There needs to be some better guidelines set out as to why articles are categorized the way they are. —Topher ( talk ) 23:40, September 6, 2009 (UTC)