See also: Staff Alumni
Unofficial staff:
See also: Cast Alumni
Listed here are all the currently active characters who are likely to appear in any upcoming episode.
Listed here are characters who are active on the show, but don't make a regular appearance.
Listed here are characters who are retired, either because the puppets are no longer available, or the cast member isn't a regular cast member anymore. They can still be seen in older episodes though and might be visiting from time to time.