A.J. Trauth aka "Twitty":
Sidekick of: Louis Stevens in Even Stevens.
Now: Has shorter and darker hair, also has facial stubble.
Jake Thomas aka Matt McGuire:
Sidekick of: Sidekick/brother of Lizzie McGuire on Lizzie McGuire.
Now: His long hair has been flat-ironed and he has a goatee.
Emily Osment aka Lilly:
Sidekick of: Miley/Hannah Montana on Hannah Montana.
Now: Looks even more like Carrie Underwood than before.
Jake T. Austin aka Max:
Sidekick of: Younger brother of Selena Gomez's character in Wizards of Waverly Place.
Now: HOT!
Margo Harshman aka Tawny:
Sidekick of: Louis Stevens in Even Stevens.
Now: Hair is straighter, looks older.
Moises Arais aka Rico:
Sidekick of: More of an annoyance to Hannah Montana.
Now: Has earrings and wears bandanas (oh, and also is best friends with Jaden Smith).
Adam Lamberg aka Gordo:
Sidekick of: Lizzie McGuire on Lizzie McGuire.
Now: Hair is even longer and curlier than it once was. Holds chickens.
Anneliese van der Pol aka Chelsea:
Sidekick of: Raven on That's So Raven.
Now: Kind of looks the same actually?
Orlando Brown aka Eddie:
Sidekick of: Raven on That's So Raven.
Now: Looks the same except now he's in jail.
Lalaine aka Miranda:
Sidekick of: Lizzie McGuire on Lizzie McGuire.
Now: Hard to say since there are few photos of her now, but it seems she likes to get her hair done and has nice teeth.
Mitchell Musso aka Oliver:
Sidekick of: Miley/Hannah Montana on Hannah Montana.
Now: Hair is no longer a bowl on his head. HAS CHEST TATTOOS!
Aly Michalka aka Keely:
Sidekick of: Phil in Phil of the Future.
Now: Brown hair!
Steven Anthony Lawrence aka Beans:
Sidekick of: Kind of a sidekick to Louis Stevens on Even Stevens.
Now: Thin and muscular, wears glasses and tank tops. WILL BE BEANS FOREVER.