Thomas John Patrick Welling is an American actor, director, producer, and model best known for his role as Clark Kent in The WB/CW superhero series Smallville and Marcus Pierce on the Fox drama series Lucifer.

A high school athlete, Welling initially worked in construction. He successfully modeled men’s clothing for several popular brands before making a successful transition to television. He has been nominated for and received several awards for his role as Clark Kent. He had a recurring role as Rob “Karate Rob” Meltzer in Judging Amy. He has also been involved behind the camera as an executive producer and a director. His films include Cheaper by the Dozen, Cheaper by the Dozen 2, The Fog, The Choice, and Draft Day.