|Original airdate||October 16, 2001 – May 21, 2002|
A meteor shower brings a young boy, later renamed Clark Kent to Smallville, Kansas. At the age of fourteen, he already exhibits invulnerability, super strength and super speed. Season One tells the stories from his first year in high school. Almost every week, he battles a new villain with super powers bestowed from exposure to the meteors. Clark also negotiates his friendships with Lana Lang, Lex Luthor, Pete Ross and Chloe Sullivan. Lex has come to Smallville to manage the fertilizer plant. He is curious about Clark and the meteor shower, but his investigations threaten to expose Clark.
Season One takes place during Clark, Lana, Pete, Chloe and the rest of there classmates' freshman year (Grade 9) at Smallville High School aged 14-15 in this season and Lana's boyfriend, Whitney Fordman being a senior (aged 17-18).
The Season 1 opening credits for each episode include the following: (eps appeared/eps in season)
This season only
These recurring characters appear in more than one episode this season only:
- Lionel Luthor - John Glover (9/21) 
- Principal James Kwan - Hiro Kanagawa (6/21)
- Victoria Hardwick - Kelly Brook (4/21)
- Deputy Gibbons - Mark Gibbon (3/21)
- Deputy Lukyn - Mark Lukyn (2/21)
- Sam Phelan - Cameron Dye (2/21)
- Nell Potter - Sarah-Jane Redmond (7/11)
- Gabe Sullivan - Robert Wisden (4/7) 
- Dr. MacIntyre - Julian Christopher (2/6)
- Dr. Harden - Rekha Sharma (1/7)
Characters that will return next season only:
- Deputy/Sheriff Ethan Miller - Mitchell Kosterman (7/14)
- Roger Nixon - Tom O'Brien (4/5)
- Dominic Sanatori - Jason Connery (2/3)
- Dr. Steven Hamilton - Joe Morton (3/4)
- Tina Greer - Lizzy Caplan  (1/2)
- Troy Turner - Jesse Hutch (1/2)
- Betty Fordman - Catherine Barroll (1/2)
- Ryan James - Ryan Kelley (1/2)
Multiple season appearances
These recurring characters appear in multiple episodes this season, and also appears in other seasons:
One off appearances this season
These Recurring Characters appear in only one episode this season, but also will return in future seasons:
- Young Lex Luthor - Matthew Munn (1/8)
- Young Clark Kent - Malkolm Alburquenque (1/3)
- Darius, Lex's Security Guard - Kwesi Ameyaw (1/3)
- Laura Lang - Wendy Chmelauskas (1/3)
- Lewis Lang - Ben Odberg (1/3)
- Young Lana Lang - Jade Unterman (1/2)
- Greg Arkin - Chad E. Donella (1/2)
- Eric Summers - Shawn Ashmore (1/2)
- Sasha Woodman - Shonda Farr (1/2)
Episode List: 2001-2002
→ see also Category:Screencaps from season 1
|Pilot||Writer: Alfred Gough & Miles Millar||Director: David Nutter||10/16/01||#1 101|
|A spaceship crashes in Smallville, Kansas during a meteor shower. A boy emerges from the ship. He is adopted and named Clark. When he is fourteen, he learns where he came from. He has a crush on Lana. He saves Lex's life. Chloe records the strange things that have happened since the meteor shower. The football team makes Clark a scarecrow by tying him to a cross in a cornfield. Jeremy Creek tries to electrocute everyone with his bare hands.
|Metamorphosis||Writer: Alfred Gough & Miles Millar||Director: Michael Watkins & Philip Sgriccia||10/23/01||#2 102|
|Greg Arkin has a passion for insects and Lana. When meteor rock infected bugs swarm him, he takes on insectoid characteristics. Clark wakes up to find himself floating above his bed. Lex tries to help Clark woo Lana by giving him her meteor rock necklace. Clark discovers that he can protect himself from its effects with lead. Greg kidnaps Lana, and Clark battles Greg to rescue her.
|Hothead||Writer: Greg Walker||Director: Greg Beeman||10/30/01||#3 103|
|Coach Walt Arnold is obsessed with winning. Meteor rocks in his sauna have given him the power to cause object to burst into flame. Clark defies Jonathan and joins the football team. Lana defies expectations, quits cheerleading and waits tables. Lex defies his father in a business plan that saves several people their jobs. The coach attacks the principal, a player, and Chloe before Clark stops him.
|X-Ray||Writer: Mark Verheiden||Director: James Frawley||11/06/01||#4 104|
|Tina Greer's skeleton is laced with meteor rocks. She is able to assume the form of anyone. She assumes the form of Lex to rob a bank. Clark discovers he has x-ray vision. Lana discovers her mother was much more interesting than her aunt ever told her. And Lex turns the tables on Roger Nixon, a journalist turned extortionist, gaining himself an unwilling ally at the Metropolis Inquisitor.
|Cool||Writer: Michael Green||Director: Jim Contner||11/13/01||#5 105|
|When Sean Kelvin falls into an icy, meteor rock-laced lake, he suffers from permanent hypothermia, he is desperate to get warm. He tries fire and electricity, but the best fix is body heat. Clark breaks a date with Lana in order to save Chloe. Clark throws Sean in a pond, which freezes and entombs him. Meanwhile, Jonathan refuses to accept Lex as an investor in the family farm.|
|Hourglass||Writer: Doris Egan||Director: Chris Long||11/20/01||#6 106|
|Clark meets Cassandra Carver. She was blinded during the meteor shower and now sees the future. When Harry Volk falls into a pond with meteor rocks, he becomes young and begins killing the descendants of the jury who convicted him of murder 60 years ago. Cassandra provides Clark with some insight into his future, but she dies when she sees a vision of Lex’s future.
|Craving||Writer: Michael Green||Director: Philip Sgriccia||11/27/01||#7 107|
|Jodi Melville begins a diet plan of vegetables shakes. Her vegetables were grown in meteor rock-contaminated soil, and she is losing weight so fast that regular food doesn't fulfill her cravings. She must suck the fat out of others. Meanwhile Lex becomes interested in Chloe's theory that all the weird stuff that happens in Smallville can be traced to the meteor shower. He begins funding the research of Steven Hamilton, a controversial mineralogist.
|Jitters||Writer: Cherie Bennett & Jeff Gottesfeld||Director: Greg Beeman & Michael Watkins||12/11/01||#8 108|
|Earl Jenkins is suffering from seizures. He was exposed to meteor rocks at LuthorCorp. In an attempt to discover what he was exposed to, he takes hostages inside the plant. Lex trades places with the hostages. Clark finds the mysterious Level 3, but there are no answers there.
|Rogue||Writer: Mark Verheiden||Director: David Carson||01/15/02||#9 109|
|Sam Phelan is a rogue cop who learns Clark's secret, but his attempts to blackmail Clark backfire when he is killed in a shootout during a museum heist. Meanwhile, Chloe is fired as editor of the Smallville Torch, but is later reinstated, and Lex has an old girlfriend reenter his life with a plan to destroy his father.
|Shimmer||Writer: Mark Verheiden & Michael Green||Director: D.J. Caruso||01/29/02||#10 110|
|Jeff Palmer discovers a strange green rose and extracts its oils to create a cream, which renders him invisible. Jeff uses his power of invisibility to attack Victoria. Meanwhile, Clark considers making a move for Lana while Whitney is distracted by his father's illness.
|Hug||Writer: Doris Egan||Director: Chris Long||02/05/02||#11 111|
|Bob Rickman wants to buy the Kent Farm to build a pesticide plant. He uses a very persuasive handshake to convince Jonathan to sell. His former business partner Kyle Tippet lives in Smallville and threatens to expose him if he doesn't get out of town. Meanwhile, Lana and Clark argue, Chloe kisses Clark, and Lex shoots Clark with an automatic weapon.
|Leech||Writer: Tim Schlattmann||Director: Greg Beeman||02/12/02||#12 112|
|Eric Summers suddenly receives the powers once wielded by Clark, and Clark is left without them. Lex turns the tables on Harry Hardwick. And Lana laments the impending sale of the Talon.
|Kinetic||Writer: Philip Levens||Director: Robert Singer||02/26/02||#13 113|
|After Whitney loses his football scholarship, he falls into a bad crowd with meteor rock tattoos that give them the power to walk through walls. They put Chloe in the hospital, blackmail Lex, and threaten to kill Whitney. Meanwhile, Lana convinces Lex to restore the Talon.
|Zero||Writer: Mark Verheiden||Director: Michael Katleman||03/12/02||#14 114|
|Roy Rothman has come to Smallville to terrorize Lex and get vengeance for his sister, who lost her fiancé at Club Zero three years ago. Meanwhile, Chloe researches Clark's adoption, and Lana prepares for the opening of the Talon.
|Nicodemus||Writer: Michael Green & Greg Walker||Director: James Marshall||03/19/02||#15 115|
|Steven Hamilton uses meteor fragments to bring the Nicodemus flower back from extinction. It infects James Beels, Jonathan, Lana and Pete before Lex's doctors find a cure.
|Stray||Writer: Philip Levens||Director: Paul Shapiro||04/16/02||#16 116|
|Ryan James can read minds. In Smallville, he tries to escape his abusive stepparents who use his abilities to help them steal by feigning amnesia. He stays with the Kents, and Clark gets to have a little brother for a few days. Meanwhile, Lex turns down an offer from Lionel to return to Metropolis.|
|Reaper||Writer: Cameron Litvack||Director: Terrence O'Hara||04/23/02||#17 117|
|Tyler Randall is resurrected after a piece of meteor rock is embedded in his wrist at the time of death. Everyone he touches turns to ash. He tries to help people by putting them out of their misery. Meanwhile, Lex thwarts Lionel's attempt to audit his books, and Whitney works up the courage to visit his ailing father before Tyler takes him as his next victim
|Drone||Writer: Philip Levens & Michael Green||Director: Michael Katleman||04/30/02||#18 118|
|Sasha Woodman is attacking classmates with a swarm of bees. Clark is running for class president with Pete as his manager. Chloe endorses the other guy. Lana finds a way to save the Talon from going under, and Lex puts a second reporter in his pocket.
|Crush||Writer: Philip Levens, Alfred Gough & Miles Millar||Director: James Marshall||05/07/02||#19 119|
|Chloe falls for Justin Gaines, a telekinetic seeking revenge against the surgeon who couldn’t heal him and the driver who hit him. Clark is jealous and counsels with Lana. Lex reconciles with his childhood nanny, and Whitney's father dies.
|Obscura||Writer: Mark Verheiden, Michael Green & Greg Walker||Director: Terrence O'Hara||05/14/02||#20 120|
|Chloe is kidnapped and Lana is having visions of her attacker. Meanwhile, Lex finds a piece of the ship in Miller's Field, and Clark asks Chloe to the spring formal.
|Tempest||Writer: Alfred Gough & Miles Millar||Director: Greg Beeman||05/21/02||#21 121|
|Clark, Chloe and Pete get ready for the spring formal. Lionel closes the plant. Lex plans an employee buyout. Roger Nixon threatens to expose Clark. Whitney leaves for the Marine Corps, and Lana gets swept up in a tornado.
- Clark develops one new super power this year: X-ray vision, ("X-Ray").
- Clark uses his existing powers as early as the first episode: super speed, super strength and invulnerability.
- The exceptions to the freak of the week format include "Rogue", "Zero", "Nicodemus", "Stray", "Obscura" and "Tempest", although the Nicodemus flower in "Nicodemus" may count for a plant version of a meteor freak, and "Obscura" involves friendly people infected with meteor rocks, meaning that there are only three episodes that does not involve kryptonite as an important element.
- The Young Adult Novel See No Evil was originally planned as an episode for the season, but eventually changed into the story for "Shimmer".
- "Flight" was another young adult novel conceived for season one, but dismissed since the writer wasn't sure how they could do the special effects for flying.
- There are no villains in the main cast in Season One.
- During this season Smallville was a follow-up to Gilmore Girls.
- This is the first and only season in which Jor-El is not heard in any episodes.
|Season One in Smallville|
|Seasons in Smallville|
- ↑ Includes John Glover's uncredited voiceover in Leech.
- ↑ Includes Deleted Scene in the Pilot.
- ↑ Includes Eric Keenleyside playing the character in a Deleted Scene in the Pilot.
- ↑ Tina was also played by Michael Rosenbaum, Beverly Breuer, Tom Welling, Kristin Kreuk, and Eric Johnson. Welling, Kreuk, and Johnson all played Tina again in Season 2.
- ↑ Also played by Wayne Dalglish in season 3's Memoria as well as by by Connor Stanhope in seasons 7 & 8 and Lucas Grabeel as teenage Lex in season 6's Reunion.
- ↑ Played by Jackson Warris in the season 8 episode Abyss.
- ↑ Played by Jovanna Huguet in the season 7 episode Cure.
- ↑ Page 37 of Smallville #10
- ↑ Page 38 of Smallville #10