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 Damon Johnson Michael Westmore Guest Star Douglas O'Keeffe Dr. Seidel Guest Star Leela Savasta Gretchen Winters Guest Star Brent Sheppard Detective Berg Guest Star Alfred Gough Executive Producer Miles Millar Executive Producer Steven S. DeKnight Writer Whitney Ransick Director