Tom Welling Clark Kent Actor Michael Rosenbaum Lex Luthor Actor Kristin Kreuk Lana Lang Actor Sam Jones III Pete Ross Actor Allison Mack Chloe Sullivan Actor John Schneider Jonathan Kent Actor Annette O'Toole Martha Kent Actor Emmanuelle Vaugier Dr. Helen Bryce Guest Star Eric Johnson Whitney Fordman Guest Star Lizzy Caplan Tina Greer Guest Star Catherine Barroll Betty Fordman Guest Star Santo Lombardo Holmes Guest Star D. Neil Mark Lt. McNulty Guest Star Alfred Gough Executive Producer Miles Millar Executive Producer Bill Gereghity Director Todd Slavkin Writer Darren Swimmer Writer