!!David "Dave" Stutler
-->'''Portrayed by''': Creator/JayBaruchel, Jake Cherry (as a ten-year-old)

The main character and the titular [[TheApprentice Apprentice]]. Dave was just an ordinary ten-year-old boy who lived in New York City when he stumbled upon the antique store of Balthazar Blake. Ten years later, Dave and Balthazar cross paths again. Balthazar tells Dave that he is the [[TheChosenOne Prime Merlinian]], a powerful sorcerer destined to stop the evil Maxim Horvath from unleashing the witch Morgana upon the world. Now, Dave must learn the ways of the sorcerer at the same time he tries to earn the heart of his crush, Becky.

* ActionSurvivor: At first.
* {{Adorkable}}: Yep, pretty much.
* AlwaysSaveTheGirl: When Horvath [[spoiler:captures Becky]], Dave [[spoiler:willingly gives him Merlin's ring and the Grimhold to save her. Balthazar later admits he would have done the same thing.]]
* TheApprentice
* BadLiar: Balthazar says this is a good thing.
* BadassBookworm: The reason Dave is good at physics is because he has natural magic talent.
** TookALevelInBadass: And how! This is the guy who [[spoiler:destroys Morgana]].
* TheChosenOne: Dave is the Prime Merlinian.
* EmbarrassingLastName: Dave ''Stutler'' (sounds like "stutter") doesn't sound particularly badass.
* GoodWithNumbers: According to Balthazar, Dave's expertise at physics is proof of his magic potential.
* TheHero: Not at first. He fully becomes one at the climax.
* HeroicResolve
* IJustWantToBeNormal: At first. He later fully accepts his responsibilities as the Prime Merlinian.
* LovableNerd
* NeverLiveItDown: In-Universe, Dave is still infamous for supposedly wetting himself and babbling about duelling wizards as a fourth grader. Parts of New York even call a nervous breakdown, "[[PersonAsVerb pulling a David Stutler]]."
* SupportingProtagonist: While he is the main character, Balthazar is the one who does the traditional heroic deeds. [[JustifiedTrope Justified]], since he is only an apprentice, and therefore, not suited to fight fully trained sorcerers like Horvath or Drake. At the climax, he fully awakens his magic powers and is ready to kick some ass.
* TeenGenius
* ThemeInitials: He and Drake Stone share the same initials.

!!Balthazar Blake
-->'''Portrayed by''': Creator/NicolasCage

Dave's master and a long-lived sorcerer. Hailing from the Middle Ages, he was one of Merlin's three apprentices, along with Maxim Horvath and Veronica. As time passed, he and Veronica fell in love. Unfortunately, Horvath betrayed his brethren and joined Morgana. After Merlin's death, Balthazar set out to find the Prime Merlinian and stop Horvath. When he finds Dave, he begins training him in the arts of magic.

* AlliterativeName / AwesomeMcCoolname
* AlwaysSaveTheGirl: When Horvath [[spoiler:captures Becky]], Dave [[spoiler:willingly gives him Merlin's ring and the Grimhold to save her. Balthazar later admits he would have done the same thing.]]
* TheApprentice: Along with Horvath and Veronica, he was Merlin's student.
* BadassLongcoat
* DisneyDeath: Don't worry, people. Dave is right here to help!
* TheHero: While Dave is the main character, Balthazar does the heroic deeds for the most of the movie.
* HeroicSacrifice: Subverted. He was planning on fighting Horvath and Morgana alone, but Dave intervenes and saves the day.
* KnightInSourArmor: Only [[ImpliedTrope implied]]. After all, this is a Disney movie.
* LargeHam: Nicolas Cage clearly had fun while doing this movie.
* MilesToGoBeforeISleep: He can't die until the finds the Prime Merlinian.
* ReallySevenHundredYearsOld
* SealedGoodInACan: He was accidentally sealed in a Chinese vase along with [[SealedEvilInACan Horvath]]. He escaped ten years later.
* WalkingTheEarth: Before he set up shop in New York, Balthazar spent years trying to find the Prime Merlinian across the world.

!!Rebecca "Becky" Barnes
-->'''Portrayed by''': Creator/TeresaPalmer, Creator/PeytonRList (as ten-year-old Becky)

Dave's love interest and childhood friend. Aside from attending high school with Dave, Becky is also the host of a radio show. Becky is unaware of Dave's life as a sorcerer, but as time passes, she uncovers the truth.

* HostageForMacGuffin: [[spoiler:Horvath and Abigail kidnap her to force Dave to give up Merlin's ring and the Grimhold.]]
* SatelliteLoveInterest: [[SubvertedTrope Subverted]]. She has a major hobby and friends apart from Dave. She also helps Dave foil Morgana's plot.
* ShesGotLegs: The introduction to her older self is a shot that pans up from her legs.
* SingleWomanSeeksGoodMan: Becky genuinely falls in love with Dave, who is the sweetest guy she'll ever meet.
* WhyDidItHaveToBeSnakes: She doesn't like heights. Later, she must confront her fears in order to help Dave defeat Morgana.

!!Veronica Gorloisen
-->'''Portrayed by''': Creator/MonicaBellucci

Merlin's third apprentice and Balthazar's love interest. She and Balthazar were in love with in one another, causing the embittered Horvath to side with Morgana. In an attempt to permanently stop her, Veronica willingly absorbed Morgana's spirit into her own body and sealed herself into the Grimhold, hoping that Morgana would never be unleashed upon the world again. Unfortunately, Horvath has other plans...

* DemonicPossession: Self-inflicted so that Morgana can be sealed into the Grimhold.
* IJustWantToBeNormal: Just like Dave.
* SealedGoodInACan: Double version. She is the good can in which [[BigBad Morgana]] is sealed. At the same time, both her and Morgana were sealed in the Grimhold.



!!Maxim Horvath
-->'''Portrayed by''': Alfred Molina

The primary antagonist. Originally, Horvath was one of Merlin's three apprentices, along with Balthazar and Veronica. He was in love with Veronica, but when he realized she was in love with Balthazar, he joined forces with Morgana to destroy mankind. Balthazar sealed him in the Grimhold, but he manages to escape. Knowing that he will need help to obtain the Grimhold and release Morgana, Horvath accepts Drake Stone as his apprentice.

* BadBoss: Horvath [[YouHaveOutlivedYourUsefulness pretty much screws over everyone he ever works with]].
* DragonInChief / TheHeavy: While Morgana is the more powerful threat, Horvath remains as the more immediate antagonist. Justified by Morgana's status as a SealedEvilInACan.
* EvilCounterpart: To Balthazar.
* EvilIsHammy
* FauxAffablyEvil: He is polite, charming, cultured, and perfectly willing to kill innocent people if they get on his way.
* KickTheDog: That driver definitely should have known better than messing with Horvath.
* HoistByHisOwnPetard: [[spoiler:Horvath steals the rings/amulets of Dave and the various Morganians he's allied himself with, making himself powerful enough to free Morgana unaided. All that extra power, however, makes him an easy target for Dave's tesla coil.]]
* KarmaHoudini: [[spoiler:He's still loose out there by the end.]]
* LoveMakesYouEvil: His entire reason for becoming Morgana's disciple is because Veronica did not return his feelings.
* SealedEvilInACan: Twice. First, Balthazar traps him in the Grimhold. He escapes. Later, they were both sealed in a Chinese vase. They both escape ten years later.
* VillainousFashionSense

!!Drake Stone
-->'''Portrayed by''': Creator/TobyKebbell

A celebrity illusionist and Horvath's new apprentice. Drake was a sorcerer who used his magic to become a famous stage magician. Being a fan of the Morganians, he joins forces with Horvath. However, he remains unaware of Horvath's true plan.

* TheDragon: To Horvath.
* MasterOfIllusion: His way to make a living. He can change his appearance to decieve others.
* MagiciansAreWizards: He uses his magic on public, but people don't really notice.
* MinionWithAnFInEvil: Drake simply follows Horvath because he admires the Morganians. However, he is not really evil and looks quite uncomfortable when Horvath remarks that his plan involves [[WouldHurtAChild the death of a few children]].
* NoCelebritiesWereHarmed: Drake is David Copperfield with real magical powers, or maybe Criss Angel due to his alternative fashion sense.
* ShrineToSelf: Drake Stone sports a couple of partially-naked portraits of himself around the house.
* ThemeInitials: He and Dave share the same initials.
* WhatHappenedToTheMouse: [[spoiler:He should have been revived after the ending, but this is never shown.]]
* YouHaveOutLivedYourUsefulness: [[spoiler:Horvath steals Drake's life-force in order to further his plans.]]

!!Abigail Williams
-->'''Portrayed by''': Nicole Ehinger

A legendary witch responsible for the Salem Witch Trials, summoned by Maxim Horvath to do his bidding,

* CreepyChild: Of course, she's an evil witch.
* TheDragon: Briefly to Horvath in place of Drake.
* SalemIsWitchCountry: Part of her past crimes as an evil witch was starting the Salem Witch Trials.
* WhatHappenedToTheMouse: [[spoiler:She should have been revived after the ending, but this is never shown.]]
* YouHaveOutlivedYourUsefulness: [[spoiler:Horvath pulls this on her, as usual.]]

!!Morgana le Fay
-->'''Portrayed by''': Alice Krige

The progenitor of all evil sorcerers and Merlin's archenemy. Morgana was first defeated years ago when Veronica absorbed her spirit into her body and sealed herself into the Grimhold. In the modern age, Horvath attempts to release her so that she can continue her plans to destroy mankind.

* ApocalypseHow: Her plan is either Class 2 or Class 3a [[spoiler:by raising an army of undead sorcerers.]]
* BigBad: Ultimately, with Horvath as TheHeavy.
* GrandTheftMe: After spending years trapped inside Veronica's body, Morgana obtains full control of Veronica and uses her body to further her plans. Later on, she abandons Veronica's body and manifests as an energy projection.
* LadyOfBlackMagic: She's very elegant, dressed in a feminine black dress and carrying herself with grace and dignity, and a powerful sorceress of black magic.
* MadeOfAir: Morgana exists as a spirit and can completely control her physical form, allowing her to dodge attacks by creating openings for attacks to pass through. [[spoiler:Dave beats her by turning the nearby lights into makeshift Tesla Coils, hardening her form so he can blast her apart.]]
* PredecessorVillain: Given how powerful and famous she became, all evil sorcerers became known as Morganians.
* SealedEvilInACan: Combined with....
* SealedInsideAPersonShapedCan: She was trapped inside Veronica's body.