
Formulate an answer to this elaborate question: "Verna" is the twelfth episode of the fourth season of the American television comedy series "30 Rock", and the 70th overall episode of the series, which former SNL cast member guest stars as the title character of this episode, an American actress and comedian best known for her work on "Saturday Night Live", where she was a repertory player from 1986–91?


Janet Vivian "Jan" Hooks
