Question: who are the guest stars on will and grace?
Answer: Harry Connick Jr. as Dr. Marvin "Leo" Markus., Michael Angarano as Elliot., Jane Lynch as Roberta., Andrew Rannells as Reggie., Max Greenfield as Eli Wolff., Leslie Jordan as Beverley Leslie., Minnie Driver as Lorraine Finster., Nick Offerman as Jackson Boudreaux.