Homer Simpson; Marge Simpson; Bart Simpson; Lisa Simpson; Maggie Simpson; Nelson Muntz; Moe Szyslak; Milhouse van Houten; Martin Prince; Wendell; Ralph Wiggum; Carl; Lenny; Dr. Julius Hibbert; Gil; Ned Flanders; Reverend Lovejoy; Snake; Barney Gumble; Sherri; Terri; Uter; Principal Skinner; Groundskeeper Willie MacMoran; Dolph; Jimbo Jones; Kearney; Database; Lunchlady Doris
Synopsis:
After Lisa is diagnosed with complications due to Middle Child Syndrome, the Simpsons decide to adopt another child to balance things out. That child turns out to be Nelson Muntz, and it's not long before he becomes head of the household, and Homer starts to suffer from Displaced Dad Syndrome. [per solicitation]