- Main article: Maxwell
Maxwell (pictured to the right) is the main character of the series. He is featured in all of the Scribblenauts titles.
- Main article: Lily (character)
Lily (pictured in the image to the right) is Maxwell's twin sister and the narrator of the story in some games. She debuted in Scribblenauts Unlimited, along with the rest of Maxwell’s family. She bears a strong resemblance to her mother and Maxwell. Maxwell and Lily have a close relationship.
- Main article: Edgar and Julie
Maxwell's parents were both great adventurers before they settled down and had 42 kids. Each of their children was given a magical item that the parents found in their travels. These treasures included Maxwell’s notebook and Lily’s globe.
List of Siblings
- Artie (found in The Virgule Gallery)
- Bruiser (found in Payper N. Penitentiary)
- Bubbles (found in Alliteration Abyss)
- Buzz (found in Kana Craters)
- Chase (found in Abjad Dunes)
- Chilly (found in Abian Sea Front)
- Clark (found in Capital City)
- Dale (found in Tilde Reef)
- Duce (found in Hyphen Heights)
- Edwin (found in Edwin's Farm)
- Flurry (found in Pilcrow Peaks)
- Flux (found in Hyphen Heights)
- Glum (found in Alliteration Abyss)
- Gorge (found in The Under Line)
- Guy (found in Ampersand Beach)
- Hector (found in Underscore Mine)
- Jack (found in The Metaforest)
- Kenpo (found in St. Asterisk)
- Larp (found in Sir Guillemet's Castle)
- Leon (found in Vowelcano)
- Ludwig (found in Palindromeda)
- Milo (found in the Camelcase Oasis)
- Mix (found in Grave Manor)
- Moury (found in Storybook Keep)
- Mox (found in Grave Manor)
- Patches (found in the Metaforest)
- Poindexter (found in Inkwell High)
- Razer (found in Majuscule Grotto)
- Rex (found in The Saurus Park)
- Scratch (found in Bullet Point Bayou)
- Serenity (found in The Metaforest)
- Shadow (found in Sir Guillemet's Castle)
- Stunt (found in Payper Plains)
- Tanc (found in Dusty Brush Canyon)
- Tempo (found in Capital City Runoff)
- Tiberius (found in Tomb of Onomatopoeia)
- Tiny (found in Ampersand Beach)
- Tony (found in Dusty Brush Canyon)
- Tots (found in Storybook Keep)
- Yarrr (found in The Listy Colon)
- Female Clone
- Maxwell's Girlfriend
- Moury’s Wife (She can be a princess, empress, movie star, detective, massage therapist or a con artist.)
- Possible Egyptian ancestor
- Edgar, Julie, and Lily can only be spawned using "@" objects, cloning machine or teleporter.
- Edgar and Julie had 42 children, which is the Answer to the Ultimate Question of Life, The Universe, and Everything in Douglas Adams' The Hitchhiker's Guide to the Galaxy series.
- All of Maxwell's brothers can be spawned with the notebook.
- Mix and Mox are the only brothers that the player can unlock at the same time.
- Most of the areas have either 1 or 2 of Maxwell's brothers.
- Lily is unlockable if the player has all 60 Starites.
- Also available as avatars in Scribblenauts Unlimited are Edgar and Julie. The player can get them by collecting every starite in the game.
- Brothers can be spawned in Unmasked, but can only be played as when created in the Avatar Creator.
- Every member of the family wears a different rooster hat.