The Simpsons is an animated television series produced by Gracie Films for Twentieth Century Fox and the Fox Network. It began as a series of interstitals (also called bumpers or shorts) for The Tracey Ullman Show on April 19, 1987, and premiered as a series on December 17, 1989 in the 8PM time slot. Regular broadcasts began on Sundays beginning January 14, 1990. Seasons Two, Three, Four, and Five were broadcast by Fox on Thursday nights in the 8PM slot, before returning to Sunday nights beginning with Season Six. For a brief while, Classic Simpsons was running, beginning at 7 pm to lead the failed block of comedy Fox scheduled for Winter of 1995.
as Voice of Homer Jay Simpson/ Abraham J. "Grampa" Simpson/ Krusty the Klown (Herschel Krustofsky)/ Barney Gumble/ Groundskeeper Willy/ Sideshow Mel/ Mayor "Diamond" Joe Quimby/ Hans Moleman/ Gil/ Itchy/ Scott Christian/ and many others
as Voice of Marjorie "Marge" Bouvier Simpson/ Patty Bouvier/ Selma Bouvier/ Jacqueline (Ingrid) Bouvier (mom is named Ingrid in The Simpson's Family Album, but Jacqueline in episode #102.
as Voice of Apu Nahasapeemapetilan/Moe Szyslak/Police Chief Clancy Wiggum/Carl Carlson/Comic Book Guy/Dr. Nick Riviera/Professor John Frink/Cletus Del Roy, the Slack-Jawed Yokel/Sea Captain McCallister/Kirk Van Houten/Superintendent Chalmers/ and others