Lex hires Dr. Curtis Knox who claims that he can "cure" someone from being a "meteor freak," changing their lives. Chloe takes an interest in this, but Dr. Knox may have another secret as ... See full summary »


Rick Rosenthal


Jerry Siegel (character created by: Superman), Joe Shuster (character created by: Superman) | 4 more credits »

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Episode cast overview:
Tom Welling ... Clark Kent
Michael Rosenbaum ... Lex Luthor
Kristin Kreuk ... Lana Lang
Allison Mack ... Chloe Sullivan
Erica Durance ... Lois Lane (credit only)
Aaron Ashmore ... Jimmy Olsen
Laura Vandervoort ... Kara
John Glover ... Lionel Luthor (credit only)
Dean Cain ... Curtis Knox, M.D.
Phil Morris ... John Jones
Jovanna Burke ... Sasha Woodman (as Jovanna Huguet)
Natalia Minuta Natalia Minuta ... Sophia
Jason Poulsen Jason Poulsen ... Colin


Lex hires Dr. Curtis Knox who claims that he can "cure" someone from being a "meteor freak," changing their lives. Chloe takes an interest in this, but Dr. Knox may have another secret as Clark finds out that Dr. Knox is an ageless immortal who needs blood from kryptonite-infected people to keep his young wife eternally young. Meanwhile, Kara makes an alliance with Jimmy to find out where her spaceship crystal is being held, while John Jones warns Clark that Kara is dangerous and tells him to find the Kryptonian crystal before Kara does. Elsewhere, Lana secretly watches Lex through her Isis Foundation to help meteor freaks. Written by matt-282

Plot Summary | Plot Synopsis

Plot Keywords:

shot multiple times | See All (1) »


TV-PG | See all certifications »






Release Date:

18 October 2007 (USA) See more »

Company Credits

Show more on IMDbPro »

Technical Specs


Sound Mix:

Dolby Digital



Aspect Ratio:

1.78 : 1
See full technical specs »

Did You Know?


Dr. Knox warns Lex that Mussolini once killed a train conductor for being late. This is actually untrue. It was a myth born of the Mussolini propaganda of the time, that Mussolini was so great a leader that he could even get Italy's trains to actually follow the schedule. The propaganda was so good that at the time that most people believed it, but according to a historical study, not only did trains' punctuality remain unimproved, but it actually deteriorated under Mussolini's reign. See more »


In the scene where Clark and Knox fight, Knox smashes his blue container with his weapon. Shortly after this, there is a shot where he is looking in horror at what he'd done and behind him, Chloe is struggling with her ankle cuffs. She appears to be wearing shoes in this frame, where-as before and after, she is barefoot. See more »


Lana Lang: [to John] Let me guess - you're from Krypton, as well?
Clark Kent: Mars, actually.
See more »


References Lois & Clark: The New Adventures of Superman (1993) See more »


Stolen Earrings
Performed by Two Hours Traffic (as Two Hours Traffic)
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User Reviews

Dean Cain- not a Super man here
19 October 2007 | by Rcwilkinson123See all my reviews

The 136th episode of the "Smallville" series welcomes former "Superman" actor Dean Cain back into a show about the Man of Steel.

However, he's not so great and super as he was in the early 90's with Teri Hatcher. In 'Cure,' he's a maniac doctor named Curtis Knox who knows how to do brain surgery on meteor freaks, removing their infection. However, he wants to kill them in the aftermath! Before any of the main characters realize this, Chloe Sullivan goes to see Dr. Knox to remove her infection. Only after a surprising helping hand from now-nemesis Lex Luthor is Clark able to resolve the problem.

It was great to see another actor from the "Superman" movie and/or TV story on the show. He marks the first actor from the Superman mythology on screen that wasn't in the Christopher Reeve films. All the others- Reeve, Margot Kidder, Annette O'Toole, Terence Stamp- all were from that era. In addition, as far as the plot went, it was interesting to see Lex actually assist Clark. Could a piece of Lex's heart actually have changed?

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