|Danger is my middle name… well, actually, it's Xylophone.|
|—Madeline Hatter in "Dragon Games"|
Madeline Hatter, or referred to as, Maddie by her friends (fully named Madeline Xylophone Hatter), is a 2013-introduced and all-around character. She is part of Alice's Adventures in Wonderland as the next Mad Hattress, and she is a student at Ever After High. In the destiny conflict, she is on the Rebel side out of a general belief that people should be free to choose, though she herself is eager to follow in her father's footsteps. As all Wonderlandians, she has access to Wonderlandian magic, although it is more accurate to say that Wonderlandian magic has access to her, because she doesn't have control over her powers. Per their escape to Ever After, all the escaped Wonderlandians transferred from Wonderland High to Ever After High. Her middle name is revealed to be Xylophone by her comment in Dragon Games
In English, Madeline Hatter is voiced by Cindy Robinson.
In Latin American Spanish, Madeline Hatter is voiced by Christine Byrd from Chapter 1 to early Chapter 2. She is voiced by Alondra Hidalgo from Chapter 2 onwards.
Madeline is bright, energetic, and extremely friendly. Generally, she interprets things more positive than they are, the one exception being when people are explicitly arguing. Madeline is also extremely fond of tea and keeps an entire tea set, including her tea buddy and pet Earl Grey, in her hat to be ready for tea time literally wherever she goes. The Wonderlandian magic which manifests in her is how she can do impossible things if she doesn't know they are impossible, she sometimes has visions of other times and other places, she can read people's thoughts as well as being able to hear the narrators, something which her peers don't believe her on.
Madeline is a girl around Raven Queen's age, but she is much more petite or shorter in statute, as so as Apple White, who is shorter than Raven. Her hair is curly and wavy, and comes in three colors: dark turquoise, mint green, and dark magenta. She has bright blue-teal eyes and light skin. She is also shorter than most of her classmates, and has a signature baby face. Her main fashion accessory theme is tea, which include a tea hat; most of her outfits incorporate tea set-inspired details. As the future Mad Hatter, Maddie also rarely goes around without a hat. In addition to her hair's colors, her clothes of choice feature yellow, black, and blue, which is called mad-tastic style combined with a vast array of non-synchronized patterns, her average look is a busy one, befitting her energetic personality. Her civilian look is a magenta puffy-sleeved layered dress with a blue bow around the waist. White leggings cover her legs. They are blue-spotted. She wears white-cream shoes with gold teapot-handle-resembling wedges or heels at the bottom of them.
After school, Maddie manages her father's Tea Shoppe. in Book End. She finds running the business somewhat easy, as her friends from school normally visit. That, as well as her love for Wonderland madness and tea. Outside of her working hours, Madeline finds enjoyment in hosting tea parties with her friends wherever.
- Main article: Alice's Adventures in Wonderland
Though not necessarily friends, Madeline is on decent terms with the narrators, who will stop fighting if she tells them to. Madeline is the one of two that are aware of their existence, being uniquely able to hear and talk to them, the other being Kitty Cheshire. Madeline also is in close terms with Brooke Page (daughter of the narrators) who often tells Madeline things to push the story in the right direction.
Madeline owns a dormouse named Earl Grey.
Madeline is not currently romantically involved with anyone, but she keeps an eye open for a boy who's just as mad for tea as she is.
- May 30, 2013: The Ever After High website goes live, featuring Madeline Hatter's profile.
- May 30, 2013: Madeline Hatter's profile art is revealed.
- May 30, 2013: Madeline Hatter makes her cartoon debut in "The World of Ever After High".
- May 31, 2013: Mattel requests the trademark for Madeline Hatter.
- Early July, 2013: Madeline Hatter's first doll is released as part of the 'Signature - Rebels' series.
- Early July, 2013: Madeline Hatter makes her diary debut in her 'Signature - Rebels' diary.
- September 03, 2013: Madeline Hatter makes her book debut in "Madeline Hatter's Story".
- Since Madeline claims her middle name to be Xylophone after saying that "Danger" is her middle name, this is considered to be true.
- In the Spanish dubs, both in Latin American Spanish and in Castilian European Spanish, her middle name is Xilófono. In Italian, it is Xilofono, in French, it is Xylophone but pronounced as "zeel-o-phone" instead of "zile-o-phone". In German, Madeline's middle name is Xylophon. It is spelled the same way, but without the e at the end.
- Madeline Hatter's pet dormouse, Earl Grey, is literally named after a type of tea, earl grey. Also, Earl Grey tea is named after Earl Grey, a title of Peerage of the United Kingdom in England. The title was named after Charles Grey, 1st Baron Grey or Charles Grey, 1st Earl Grey. The tea is either named after the title or Charles Grey. Also, Earl Grey the dormouse is based on the Dormouse, a dormouse in "Alice's Adventures in Wonderland".
- Speaking of which, in "Alice's Adventures in Wonderland", the Dormouse was a sleepy, always tired mouse (specifically, a dormouse, of course) who drank tea with the March Hare and the Mad Hatter (or Mad Hatter), and always felt the urge to fall asleep.
- She, along with Raven and Apple will meet the ghouls at Monster High in "The Lost Movie".