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 Justin Hartley Oliver Queen, Green Arrow Guest Star Alaina Huffman Dinah Lance, Black Canary Guest Star Heather Doerksen Isis Receptionist Guest Star Alfred Gough Executive Producer Miles Millar Executive Producer Kevin Fair Director Brian Wayne Peterson Writer Kelly Souders Writer