- Hilary Duff Lizzie/Isabella
- Adam Lamberg David "Gordo" Gordon
- Robert Carradine Sam McGuire
- Hallie Todd Jo
- Jake Thomas Matt
- Yani Gellman Paolo
- Alex Borstein Srta. Ungermeyer
- Clayton Snyder Ethan
- Ashlie Brillault Kate
- Brendan Kelly Sergei
- Carly Schroeder Melina
- Giulio Berruti Chico italiano #2
- Katy Louise Saunders