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 Eric Johnson Whitney Fordman Actor Adam Brody Justin Gaines Guest Star John Glover Lionel Luthor Guest Star Hiro Kanagawa Principal H. James Kwan Guest Star Donna Bullock Pamela Jenkins Guest Star James Purcell Dr. Christopher Wells Guest Star Kevan Ohtsji Danny Kwan Guest Star Anaya Farrell Renee Wells Guest Star Catherine Barroll Betty Fordman Guest Star Serge Houde John Frankle Guest Star Alfred Gough Executive Producer, Writer Miles Millar Executive Producer, Writer James Marshall Director Philip Levens Writer