9. British identical twins Becky and Milly Rosso were actually just audience members when they were picked out of the crowd by producers to play the boys' love interests, Janice and Jessica.

"[The executive producer] heard that we were English and we were twins, and she asked us to audition for the show," Milly told KidzWorld. "So, we took acting lessons for several months and we auditioned to be on one episode, and they liked how we played the characters, so they put us in 7 episodes!"

10. In 2010, the New York Post reported Dylan and Cody, then 17, were making $20,000 each per episode. In the article, one agent claimed that at the start of the series, "When Ashley Tisdale was on The Suite Life of Zack and Cody...I heard she was making $9,000 an episode, and the boys got $12,000 to 15,000 per episode."