I think Terence stamp wood be a good guest and complete the superman line up and antony head James masters david Boreanaz Sarah Michelle Gellar Charisma Carpenter Michelle Trachtenberg Seth Green Amber Benson Kristine Sutherland Eliza Dushku wood be good too it cast 90s Annette O'Toole Richard Thomas Emily Perkins Dennis Christopher Tim Reid richard masur Brandon Crane Adam Faraizl Ben Heller Marlon Taylor Olivia Hussey Tim Curry and doug jones from hellboy mark hamill Harrison Ford James Earl Jones Jeremy Irons Rowan Atkinson