In addition to the main cast, Pamela Hayden, Tress MacNeille, Marcia Wallace, Maggie Roswell, and Russi Taylor voice supporting characters. From 1999 to 2002, Roswell's characters were voiced by Marcia Mitzman Gaven. Karl Wiedergott has also appeared in minor roles, but does not voice any recurring characters. Wiedergott left the show in 2010, and since then Chris Edgerly has appeared regularly to voice minor characters. Repeat "special guest" cast members include Albert Brooks, Phil Hartman, Jon Lovitz, Joe Mantegna, Maurice LaMarche, and Kelsey Grammer. Following Hartman's death in 1998, the characters he voiced (Troy McClure and Lionel Hutz) were retired; Wallace's character of Edna Krabappel was retired as well after her death in 2013. Following Taylor's death in 2019, her characters (including Sherri, Terri, and Martin Prince) are now voiced by Grey Griffin.
In addition to the main cast, Pamela Hayden Tress MacNeille, Marcia Wallace, Maggie Roswell, and Russi Taylor voice supporting characters. From 1999 to 2002, Roswell's characters were voiced by Marcia Mitzman Gaven. Karl Wiedergott has also appeared in minor roles, but does not voice any recurring characters. Wiedergott left the show in 2010, and since then Chris Edgerly has appeared regularly to voice minor characters. ,Repeat "special guest" cast members include Albert Brooks, Phil Hartman, Jon Lovitz, Joe Mantegna, Maurice LaMarche, and Kelsey Grammer. Following Hartman's death in 1998, the characters he voiced (Troy McClure and Lionel Hutz) were retired; Wallace's character of Edna Krabappel was retired as well after her death in 2013. Following Taylor's death in 2019, her characters (including Sherri, Terri, and Martin Prince) are now voiced by Grey Griffin.