Brilliant but Lazy : It has been stated in universe. Zack is actually very smart, possibly on par with Cody, but he lacks work ethic, and is quite lazy in regards to studies. However, when properly motivated and on the right subject, (Woodshop, for example) Zack is a brilliant student, having gotten A's when he applies himself, and is the best in class at Woodshop, even better then Cody, which Cody is astounded by.
Informed Attribute: We're told Zack's a bad boy. We've never seen it. Unless you count Zany Schemes.
"The Bermuda Triangle" flips this around and turns it up to eleven with Cody being basically an exaggerated flanderization of Zack, complete with a bad boy leather jacket wearing persona, and Zack being one of Cody; a supersensitive Camp Straight Mama's boy.
Kid-anova: Though to be fair, his attempts failed just as often as they succeeded.
Took a Level in Kindness: Especially after dating Maya. Maya's birthday is an example and its implied it's not simply to woo her but thinks she deserves a birthday party that Mosby decides to deny. Though he's shown shades of being caring all throughout both series not only to Maya but to Maddie as well as being the only one to Show up at her sweet 16 party as everybody goes to London's after she bribes them. Another instance has him object to London lip-syncing and Maddie providing her singing voice. He thinks Maddie deserves the recognition.
Let's not forget him falling to pieces after seeing a romance film.
Badass Bookworm: While primarily displayed in the Suite Life On Deck.There are moments when Cody actually surpasses Zack in physical ability. Best examples are in "It's All Greek to Me", where he lifts a heavy glass case by himself, in another, he rips a towel in half, and in another, he tackles and takes down Kurt Warner, one of the greatest undrafted football players of all time, and one of the greatest players in NFL history. Let it be known that the first two were because he heard Bailey talk about another guy in a romantic way, so they could be jealousy-fuelled. The last one was all him, though.
Screams Like a Little Girl: Cole Sprouse is really very good at girly screams for his rather chicken-hearted character. Even more impressive as he is able to maintain his girly scream even after going through puberty.
Hidden Depths: London on occasion shows this, along with some Obfuscating Stupidity and Deadpan Snarker moments, most noticeable during an episode where the main cast got stuck on an island and had to fend for themselves. London, seemingly in shock from the event, thought they were at a beach resort. That is, until they were safely back on the cruise liner and mentioned off hand that it was her way to get out of the manual labor.
In the Christmas Episode, London goes through a Yet Another Christmas Carol plot. This episode reveals that London was a good kid until the bitterness about her dad never being around for christmas (or any other time for that matter) got to her.
There are also quite a few episodes dealing with London being a Lonely Rich Kid.
But Not Too Black: Played With. Flashbacks show that Moseby became progressively less black as his career advanced. Occasionally, however, he'll say or do something to indicate that there's still a Soul Brotha in there somewhere.
Parental Substitute: For London. It's discussed and shown throughout both series that he's been the main parental figure in her life, with her distant parents and interchangeable nannies. In the episode where London is learning to drive, we find out that Moseby actually taught her how to walk as well as tying her shoes, riding a bike and roller-skating. She then comments that he has been in the Tipton family album more than her father or any of his ex-wives. They exchange the occasional tender moment when London is missing her parents. Other characters notice this too:
London: Why should I get [Moseby] a birthday present? What has he done for me lately?
Bailey: *Beat* Raised you like you were his own daughter?
London: Look at me. I'm selfish and spoiled. He did a terrible job. *Beat* Fine. But I'm gonna be extra selfish tomorrow!
Amicable Exes: She and Kurt are on good terms. By the time of The Finale of Suite Life on Deck this has changed, as when Kurt asks if she wants one of his CDs she says "No. Some child support would be nice."
Actor Allusion: Maddie is played by Ashley Tisdale, who also plays Sharpay in High School Musical. This gets lampshaded in one episode of The Suite Life of Zack and Cody, in which the school is putting on a stage play of this very movie, and Maddie tries out for the role of Sharpay (only to lose to London):
Maddie: Everyone says I look just like the girl who plays her! Cody: Really? I don't see it.
Mr. Blaine: (to Cody) You even look kind of like Zac Efron? Maddie: And I don't look like Ashley Tisdale?! You people are all crazy!
Yandere: Never try to get between Agnes and her men.
Characters from The Suite Life On Deck
Cody's crush in season one. She is pretty bubbly, friendly, and smart, almost a female equivalent to Cody. She officially starts dating him after he buys her tickets to a Hannah Montana concert. They go through a nasty breakup at the end of season two because of several misunderstandings, and had Unresolved Sexual Tension throughout season three. Both were unwilling to admit they were wrong, but both set their feud aside in the three part Twister trilogy and get back together.
An ex rapper who lost his carrer because of his puberty. He joins the S.S Tipton Seven Seas High program and befriends much of the main cast. He leaves the S.S Titpon when he gets his singing job back on track.
Characterization Marches On: Remember how he seems to care about London's well being. In his final and first real appearance appearance, London has to remind him of who she is. Plus his criminal activities aren't pointed out until this time too with his most corrupt behavior before then is endangering some wales with his cruise ship. His final appearance talks of him embezzling money and on top of that wants to turn the Picket farm into a plastic bag factory.
He Who Must Not Be Seen: Is usually concealed by a wall of body guards and isn't properly seen until near the end of On Deck.
Serial Spouse: Has been married anywhere between eight and fifteen times. And each of them get shorter and shorter as London is the child of wife number 3 though The earlier show suggests she's wife number 1. At the start of the show he's on or between wife 4. he seems to go through at least a half dozen between the two shows.
Hive Mind: His evil plan is to create one that answers to him, via twins.
Knight of Cerebus: Zig Zagged, he has plenty of humorous quircks, but they go down the drain when he sicks his Hive Mind army onto Zack and Cody. He also plans on using his Hivemind to control socioty.