Tom Welling was 24 years old when Smallville premiered in 2001.

Quick Scoop

  • Tom Welling was born on April 26, 1977.
  • Smallville debuted on October 16, 2001, which made him 24 at the time season 1 aired.
  • In the show, Clark Kent is a 14–15-year-old high school freshman in season 1, so Welling was almost 10 years older than his character.

So if you’re wondering “how old was Tom Welling in Smallville ” specifically in the early seasons, the key number fans usually quote is 24 for season 1.

That big age gap is actually pretty common in teen dramas and helped the production handle long hours and more mature storylines while still telling a high school Superman origin story.

TL;DR: Tom Welling was 24 in season 1 of Smallville , playing a Clark Kent who was about 15.

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