Every superhero has a beginning...
Before he was Superman, he was just a young man with extraordinary abilities.
Before he was Superman, he was just a boy with extraordinary abilities.
The Superman you couldn't know--until now.
Jensen Ackles (played Alec on Dark Angel) was second choice to play Clark Kent. If Tom Welling had not accepted the part, the role would have gone to him.
Note: In season four, Ackles joined the cast of "Smallville" to play 'Jason Teague' (Lana's love interest)
Milo Ventimiglia, before scoring his role on Gilmore Girls, auditioned for Smallville. Although the role went to Tom Welling, the producers liked him so much they gave him the role of Jess [Gilmore Girls].
In the comic books, Lana Lang is the one with the secret crush on Clark Kent.
Chloe and Whitney were created specifically for the show (they were never mentioned in the Superman comics).
Cynthia Ettinger was originally cast as Martha Kent in the pilot episode. Before the pilot was broadcast, the role was re-cast with Annette O'Toole and her scenes were edited into the existing footage.
Annette O'Toole, who plays Mrs. Kent, also appeared in Superman III (1983) as Lana Lang.
Clark consistently wears red and/or blue clothing, the same livery he will eventually wear as Superman.
Lex Luther's mansion is the same mansion used in X-Men (2000)
Errors in geography: Although set in the state of Kansas, we often see the mountains of Vancouver (its actual filming location) appearing in the background of exterior shots.
A sequence in Hourglass showing Lex Luthor as President of the United States was filmed on the set of "The West Wing"
The pilot episode shows Chloe handing Pete Ross a wad of cash. Most likely an in-joke from the Canadian production crew, if you look carefully, you can see a Canadian $5 bill sticking out of it.
The number on Clark's Jersey in episode 3 (Hothead) is 89. This is also the year, according to the pilot, that he crashed to Earth from Krypton.
The spaceship reappears differently in season two than what was show from the pilot episode. The spaceship (season two) has the hole for the octagonal piece and an small golden cupule, but in the first spaceship it had no cupule.
[Esther B. for the info]
In the pilot episode the Kent's mail box is different from the one that appears the rest of the seasons.
[Esther B. for the info]
At the beginning of the episode "Nicodemus", Jonathan Kent is listening to the theme song from "The Dukes of Hazzard" (1979). John Schneider, who plays Mr. Kent, also played Bo Duke.
Kristin Kreuk had a stunt double in Nicodemus. Yes it is true, it was not Kristin in the Pool doing the stunts. The Stunt work was done by Mary Eng a Vancouver-based stunt performer and stunt co-ordinator.
Michael Rosenbaum (Lex Luthor) is no stranger to the world of superheroes. He has repeatedly lent his voice talents to the animated series "Batman Beyond" (1999) and is also the voice of the Flash in the animated series "Justice League." (2001)
The climax of first season episode "Stray" (episode #16) was shot on location in a bowling alley in Richmond, BC, Canada. Coincidentally, the bowling alley in question is named "Lois Lanes", also the name of Clark Kent's future love interest.
At the charity party the end of "Fever" Pete hands Clark a CD and tells him it's the Talon mix. If you look closely you'll see that it is actually the soundtrack to the series.
We find out in season three on "Delete" (3:11), that in fact Lois Lane is Chloe's cousin.
According to Martha, Clark's first word was "Lara", the name of his Kryptonian Biological mother as revealed in "Memoria".