* The show's timeline is a bit ambiguous. There are references to the characters being in different grades, but these don't always align with typical ages.
* The actors' ages changed over the show's run. The show ran for three seasons, and the cast naturally aged during that time.
However, we can give some estimations based on the characters' storylines and the actors' ages when the show premiered:
* Zack Martin: Initially, Zack is portrayed as being 15 years old when the show begins. He ages throughout the show, likely turning 16 and then 17.
* Cody Martin: Cody is usually portrayed as being a year younger than Zack, so he would be 14 at the start and then 15 and 16.
* London Tipton: London is often presented as being the same age as Zack, so she would also be 15 at the start and then 16 and 17.
* Bailey Pickett: Bailey is typically portrayed as being a year younger than Cody, so she would be 13 at the start and then 14 and 15.
* Woody Fink: Woody is presented as being a bit older than the main group, likely around 18 or 19 when the show begins.
Keep in mind that these are just rough estimates. The show itself doesn't always give definitive ages, and the actors' real-life ages were a factor in their portrayal of the characters.