watch 01:21 The Loop (TV) Do you like this video? This article about a Simpsons character is a stub. You can help the Simpsons Wiki by embiggening it. Muriel Chalmers is the sister of Superintendent Gary Chalmers. Retrieved from "https://simpsons.fandom.com/wiki/Muriel_Chalmers?oldid=917839" Categories: Female characters Characters with unknown status Character stub Characters Adults Unseen characters Mentioned characters Non-speaking characters Superintendent Chalmers Siblings Chalmers family Season 12 first appearances Possibly Deceased Characters Community content is available under CC-BY-SA unless otherwise noted.