At the start of season one, Clark Kent (Tom Welling) is a young man with superhuman abilities that's trying to figure out his place in this world after discovering he's an alien.  Throuhout the seasons, Clark Kent is slowly becoming more and more Superman, discovering his abilities as time goes on.

At the start of the show, Clark is friends with billionaire Lex Luthor, whose life he saved.  Of course, later on Lex would go on to become his nemesis before leaving the show

Clark has had an on and off again relationship with Lana Lang and in the latest seasons, fans have been hoping for a Lois and Clark finally.

Now, Clark works at the Daily Planet and is forced to meet all sorts of fun villains from the DC Universe.

Clark Kent Quotes

Clark: She saw it.
Nurse: Saw what?
Clark: Her future.

Clark: How're you feeling?
Chloe: Like a million bucks... that was thrown in the washing machine and set on "spin".

Smallville Quotes

Clark: She saw it.
Nurse: Saw what?
Clark: Her future.

A man is judged by the quality of his friends. If the quarterback's with them, he'll have to face the consequences.

Lex