Marge Simpson voice is performed by Julie Kavner, who also does the voices of Marge's mother Jacqueline and her sisters Patty and Selma. Kavner had been part of the regular cast of "The Tracey Ullman Show". Voices were needed for the shorts, so the producers decided to ask Kavner and fellow cast member Dan Castellaneta to voice Marge and Homer rather than hire more actors. Part of Kavner's contract says that she will never have to promote "The Simpsons" on video and she rarely performs Marge's voice in public because she believes it "destroys the illusion. People feel these are real people."
The Simpsons Simpsons" has had crossovers with four other shows. In the episode "A Star Is Burns", Marge invites Jay Sherman, the main character of "The Critic", to be a judge for a film festival in Springfield. Matt Groening had his name removed from the episode since he had no involvement with "The Critic". "South Park" later paid homage to "The Simpsons" with the episode "Simpsons Already Did It". In "Simpsorama", the Planet Express crew from "Futurama" come to Springfield in the present to prevent the Simpsons from destroying the future. In the "Family Guy" episode "The Simpsons Guy", the Griffins visit