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A periodic reminder of how Muppet Wiki handles Connections (the lists on a page for a relevant show, movie, franchise, etc.) First and foremost, it has to be someone who has worked with the Muppets, Sesame Street, or on-camera with Creatures in some way. Generally anyone in Celebrities counts, but those just in Celebrity References do not.
Secondly, these lists have to be in alphabetical order. If you can't alphabetize, you might be better off waiting for someone else to add. They should be specific but not over-detailed: short versions of character names are fine and in fact preferred, but unless it's just not confirmable (or they played say six minor characters over multiple seasons), it helps to specify what role a person had. Additional "so and so's estranged sister" or whatever aren't needed. Also, any "archival" roles in anything don't count (so while we track use of Muppet clips in movies, there's no value in adding every time a reused voice clip of James Earl Jones as Darth Vader is in something we don't cover in full).
Also, there's the matter of duplication, which with some of the major franchises or franchises crossing over, can sometimes get tricky. But basically if someone was in a Star Wars project, it should go on Star Wars; if they reprised a Star Wars role in a spoof on The Simpsons, it can go there. For Marvel Comics (especially) and DC Comics, if they're in the all-purpose "all the heroes meet up" movies, those appearances go on the broader lists. For specific appearances in Superman or Spider-Man movies or shows, they go on those pages.
The latest complication comes from multifranchise video games and stuff (Disney Infinity, Lego Dimensions, whatever else may come by). It's best to leave them on the parent show unless it's a voice replacement brought on for only that project, and if you've already looked at the pages for Star Wars or whatever and seen names, don't copy them over. I just did some partial cleanup of Lego for that reason, as apart from the video games they've also done direct-to-video "established characters but as Lego figures" things and those become too numerous to track (we don't list every video or appearance where Frank Welker voices Scooby-Doo, just a time span, and occasionally if it's an otherwise unrelated cameo in something, we'll note it).