You Can't Twin is the fourth episode of the fifth season and the 101st overall episode of Sabrina the Teenage Witch.
Sabrina goes to an Other Realm amusement park to get away from her roommates, who are taking advantage of her good nature, but while there, she runs into Katrina, her evil twin, who is doing community service at the amusement park in order to lower her jail time. Katrina switches her and Sabrina's passports, and Katrina takes Sabrina's place in the mortal realm. While Sabrina languishes in prison with Zelda's evil twin, Jezebelda, Katrina tries to ruin Sabrina's life by doing various evil things to her roommates and her aunts.
Meanwhile, Hilda tires of her egotistical date, an actor from the Other Realm named Alec.
Uses of Magic
- This is the second appearance of Katrina, and first appearance of Jezebelda.
- In "The Good, the Bad and the Luau," after Katrina is revealed to be the evil twin, it is said that she would only be sent to live in the Twin Cities in the Other Realm, nothing is mentioned of her having to go to prison.
- Charles Shaughnessy (Alec) will reappear in the episode "Witchright Hall" portraying Professor James Hexton.
- Charles Shaughnessy and Caroline Rhea (Hilda) are friends in real life. Caroline guest-starred on his series in the episode "Making Whoopi" of "The Nanny." The two also starred together in the Disney Channel Original Movie, "My Mom's Got a Date with A Vampire!!!" which aired the same day as this episode.
- Sabrina's passport claims that she was born on March 21, 1981 which is incorrect as her birthday is celebrated on the first day of school in the pilot, "Sabrina Gets Her License (Part 1)," and "No Place Like Home."
- We learn that Diana's maiden name is Becker.
- Jezebelda reveals that she apparently caused the Bubonic Plague.
- Sabrina and Katrina's passport photos are both pictures from the season's promotional photo shoot