High Quality Content by WIKIPEDIA articles! Season one of Smallville, an American television series developed by Alfred Gough and Miles Millar, began airing on October 16, 2001, on The WB television network. The series recounts the early adventures of Kryptonian Clark Kent as he adjusts to his developing superpowers in the fictional town of Smallville, Kansas, during the years before he becomes Superman. The first season comprises 21 episodes and concluded its initial airing on May 21, 2002. Regular cast members during season one include Tom Welling, Michael Rosenbaum, Kristin Kreuk, Annette O`Toole, John Schneider, Sam Jones III, Allison Mack, and Eric Johnson.