Okay, here's what I mean: you know when I put the bolded "Series:" tag on Red and Heidi's speaking role sections just in case someone doesn't count the movie or wants to know when they first spoke in the series? What I did on Cartman's is similar; some people may not count Cartman's appearance in The Spirit of Christmas (or anyone's appearance in the short for that matter) as a real appearance. Not because he was named "Kenny" at that point, but because it's a short and not an episode in the series.
Back when I put the bolded "Series:" tag on Red and Heidi's debut speaking role sections, I used the tag and it fit in the info box perfectly fine, but when I did it on Cartman's page it went outside his info box. How come it didn't work on Cartman's page when I was able to do it perfectly fine on Red and Heidi's pages?
Because you got confused with the LinkDisambig template. I fixed it for you. Just realize though, that I don't like <br>'''Series:''' "Episode", so I'm going to come up with a better solution tonight. So I just need to know which ones you've done, so I can go back and do my solution.
Feel free to keep going, but in the end, I'm going to make it look better.