The series is set in the Tipton Hotel in Boston and centers on Zack Martin and Cody Martin (Dylan and Cole Sprouse), troublesome twins who live at the Tipton Hotel. The series' other main characters include the Tipton hotel's ditzy heiress London Tipton (Brenda Song), the hotel's candy counter girl Maddie Fitzpatrick (Ashley Tisdale), the manager, Mr. Marion Moseby (Phill Lewis), and the boys' single mother who is also the Hotel's lounge singer, Carey Martin (Kim Rhodes). The series is the third Disney Channel Original to have more than 65 episodes, after That's So Raven and Kim Possible. Reruns aired on Disney XD and on the Watch Disney XD app. Reruns of the show aired on Disney Channel until April 14, 2017.

Answer this question: who plays maddie in the suite life of zack and cody? Let's give stream of consciousness first:
To answer the above question, the relevant sentence is: The series' other main characters include the Tipton hotel's ditzy heiress London Tipton (Brenda Song), the hotel's candy counter girl Maddie Fitzpatrick (Ashley Tisdale), the manager, Mr. Marion Moseby (Phill Lewis), and the boys' single mother who is also the Hotel's lounge singer, Carey Martin (Kim Rhodes).
So, the final answer is Ashley Tisdale.