"Saturday Night Live" returns Oct. 17 with cast intact--for the first time since 1978, NBC announced Monday. The late-night show brought in an average 7.6 rating and 23 share of the viewing audience last season--its highest numbers since 1981, when Eddie Murphy led the cast. Not yet announced but already a done deal: Steve Martin will host the season premiere. The cast includes Dana Carvey, Nora Dunn, Phil Hartman, Jan Hooks, Victoria Jackson, Jon Lovitz, Dennis Miller, Kevin Nealon and A. Whitney Brown. Lorne Michaels returns as producer.