Tom Welling Clark Kent Actor Kristin Kreuk Lana Lang Actor Michael Rosenbaum Lex Luthor Actor Allison Mack Chloe Sullivan Actor John Schneider Jonathan Kent Actor Annette O'Toole Martha Kent Actor John Glover Lionel Luthor Actor Erica Durance Lois Lane Actor James Marsters Milton Fine Guest Star Terence Stamp Jor-El Guest Voice Alana De La Garza Aethyr Guest Star Leonard Roberts Nam-Ek Guest Star Alfred Gough Executive Producer Miles Millar Executive Producer Todd Slavkin Writer Darren Swimmer Writer James Marshall Director