Just recently, Sesame Street has lost another family member, the actress and comedienne Ruth Buzzi, who played Ruthie on the show during the 1990's. Also on the show, she voiced those 2 animated characters Suzie Kabloozie and Feff during those animated segments.

Not only was she on the show, she was also best known in her role on the TV show Rowan & Martin's Laugh-In. And she was also a guest star on The Muppet Show.

Ruth Buzzi and her characters were another great part of Sesame Street, and will never be forgotten. My sincere thoughts and condolences go out to her family, to her friends, to her fans, and to the cast and crew of Sesame Street and Sesame Workshop. She will be sorely and terribly missed. And it's an enormous loss, too.

https://www.hollywoodreporter.com/tv/tv-news/ruth-buzzi-dead-laugh-in-1236206037/