Editing Mrs. Tweak (section) Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to your username, along with other benefits.Anti-spam check. Do not fill this in!==Behind the Scenes== In her first two appearances, Mrs. Tweak was voiced by Mary Kay Bergman, who voiced all of the show's female characters. After Bergman's passing, the role was taken over by Eliza J. Schneider through season 7's "[[South Park Is Gay]]". After a long absence from speaking roles, a new voice actress began voicing the character in the season 17 episode "[[Informative Murder Porn]]", believed to be either Mona Marshall or April Stewart. Summary: Please note that all contributions to South Park Wiki may be edited, altered, or removed by other contributors. If you do not want your writing to be edited mercilessly, then do not submit it here. You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource (see South Park Wiki:Copyrights for details). Do not submit copyrighted work without permission! Cancel Editing help (opens in new window)