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 James Marsters Brainiac Guest Star Michael Cassidy Grant Gabriel Guest Star Marc McClure Dax-Ur Guest Star Terence Stamp Jor-El Guest Voice Howard Siegel Homeless Man Guest Star Connor Christopher Levins Max Guest Star Sharlene Martin Grace Guest Star Alfred Gough Executive Producer Miles Millar Executive Producer Todd Slavkin Director Holly Henderson Writer Don Whitehead Writer