Tom Welling Clark Kent Actor Kristin Kreuk Lana Lang Actor Michael Rosenbaum Lex Luthor Actor Allison Mack Chloe Sullivan Actor John Glover Lionel Luthor Actor Erica Durance Lois Lane Actor Laura Vandervoort Kara Kent Actor Aaron Ashmore Jimmy Olsen Actor Robert Picardo Edward Teague Guest Star Ari Cohen Regan Matthews Guest Star Donnelly Rhodes Milash Guest Star James Rowley Milash's Guard Guest Star Sarah Hayward Milash's Guard Guest Star Alfred Gough Executive Producer Miles Millar Executive Producer Ken Biller Director Holly Harold Writer