Kristina Donnelly had cancer, and thanks to the Make-A-Wish Foundation, she was given the opportunity to be in Muppets from Space. She had originally wished to just be an extra, but some of the performers (namely Dave Goelz and Steve Whitmire) suggested giving her a choice between being an extra or an extra puppeteer, and she chose to be a puppeteer. She went uncredited.
Donnelly sadly died from Ewing's Sarcoma shortly after the movie was released.
- Muppet Central Tribute, November 8, 1999.