

They originally intended to attend Harvard University however, they have a bad encounter with a Dean there, as the dean helped to lie when Zack dated the dean's daughter. The twins are proven to have Swedish backgrounds in the Suite Life on Deck episode, "The Swede Life". Cody is shown to have a strong-almost obsessive-fear of germs. In one episode of The Suite Life on Deck, Cody and Zack fight over the fact that Zack stole an old term paper from Cody rather than writing his own, and Zack admits that he knows he'll never match Cody academically and feels inferior to his brother in response, Cody admits that he works hard to get grades because Zack is better at sports, better with girls, and more popular, while the only thing Cody has going for him is his intelligence.

The twins attended Buckner Middle School during seasons 1 & 2, Cheevers High School during season 3 of The Suite Life of Zack & Cody, and Seven Seas High on board the SS Tipton in The Suite Life on Deck. In the episode of The Suite Life of Zack & Cody titled " Poor Little Rich Girl", however, a baby video of the two is date-stamped September 23, 1992. In The Suite Life on Deck episode, " Das Boots", it is said to be 1993. Joseph's Hospital in Seattle, Washington on a Saturday: Zack at 6:30 and Cody at 6:40. In fact, they were originally named Dylan and Cole." Character information Sprouse said of Zack and Cody, "The characters were originally based off of our personalities. Dylan Sprouse stated that the idea of twins living in a hotel was something he and his brother came up with when they were shooting Big Daddy and stayed in a hotel for four months.
