Elizabeth Brooke "Lizzie" McGuire
The main character. The show revolves around the lives of her and her friends. She is a shy girl and a little clumsy. She dreams to fit in and be popular. She has an animated inner voice that breaks the fourth wall to reveal her thoughts and feelings.
- A-Cup Angst: She's aware of her lack of breasts as seen in "Between a Rock and a Bra Place". She persuades her mom into letting her buy a bra at the mall, only to realize in the end that she didn't need one after all and just wanted to fit in with the crowd.
- Adorkable: Part of her Cute Clumsy Girl appeal, other than being shy, naive and genuinely kind.
- Aesop Amnesia: Lizzie learns her lessons; she just doesn't remember those lessons.
- All Love Is Unrequited: For Ethan. Larry Tudgeman also had an unrequited crush on her.
- All-Loving Hero: Lizzie is genuinely nice even to her enemies.
- Bare Your Midriff: Animated Lizzie's shirt exposes her belly button.
- Beware the Nice Ones: Lizzie is a very sweet girl, but mess with her and she will fight back.
- Big Damn Kiss: Shares one with Gordo at the end of The Movie.
- Big Sister Instinct: At times she's shown to be defensive of her little brother Matt, as much as a nuisance he is to her.
- Bitch in Sheep's Clothing: She could be seen as one in the case of having her animated counterpart express her true feelings when faced with the likelihood of ingenuity.
- Bratty Teenage Daughter: Due to her impulsiveness, she waltzes into bratty behavior towards her mother more often than not.
- Breaking the Fourth Wall: The main schtick of her animated counterpart is to express her true feelings to the audience.
- Butt-Monkey: She qualifies as one owing to her clumsiness.
- The Chew Toy: Lizzie is quite a frequent victim of slapstick.
- Childhood Friend Romance: With Gordo in the movie.
- Companion Cube: She shares a close relationship with her stuffed bear pig toy, Mr. Snuggles.
- Cool Loser: True to trope, she is funny, good-looking and smart, but isn't exactly high on the popularity ladder (though she is well liked). It's implied this is because of Kate's influence with them used to be friends.
- Cute Clumsy Girl: It's also lampshaded in one episode which features flashbacks of all her clumsy moments.
- The Cutie: She's incredibly sweet and good-natured most of the time.
- Deadpan Snarker: Her animated consciousness, especially as it's her reason for being there. Real-life Lizzie also has her moments, a particularly funny example is one episode where Animated-Lizzie makes a snarky comment about Miranda, and then Real-life Lizzie repeats exactly the same thing to Miranda's face.
- Fatal Flaw: Her impulsiveness. Even when her parents have objected, Lizzie will be quick to give into peer pressure and find a way around parental authority. It obviously doesn't end well on her part.
- Former Friend of Alpha Bitch: To Kate. They used to be best friends until the latter became popular because she developed early in regards to puberty.
- Girls Love Stuffed Animals: She owns a stuffed pig plush named Mr. Snuggles that she cares deeply for.
- Greek Chorus: Her animated self as the narrator.
- Hair of Gold, Heart of Gold: A sweet Naïve Everygirl with blonde hair.
- The Heart: In her group of friends, she's the one who keeps them together.
- Heterosexual Life-Partners: With Miranda; they are best friends.
- Hidden Depths: Lizzie possesses a talent in gymnastics despite her characteristic clumsiness.
- Idiot Ball: Sometimes Lizzie's pursuits and impulsiveness get the best of her and cause her to become absentmindedly oblivious. Nevertheless, she always comes out clean and learns her lesson.
- I Just Want to Be Special: Lizzie's main goal is to fit in with the cool kids, but she's too insecure to do so due to the risks she'd be taking by joining them. As a result, she's overly nice even in the face of aggression, but has her animated counterpart express her true feelings.
- The Ingenue: Lizzie is a real sweetheart who means well, but at her absolute worst she can lose control over her impulsiveness and become a stuck-up Bitch in Sheep's Clothing.
- Innocently Insensitive: Anytime Lizzie misbehaves, it's mostly done out of impulsiveness and completely unintentional on her part.
- The Kirk: To Gordo's The Spock and Miranda's The McCoy. Not as impulsive as Miranda and not as logical as Gordo.
- The Klutz: She trips and hurts herself a lot.
- Naïve Everygirl: Insecure, nice-but-liable to make mistakes, and picked on by the Alpha Bitch.
- Nice Girl: She's nice, honest and friendly, even to her enemies.
- Oblivious to Love: To Gordo. It's ridiculous that it takes her until the "Whodunit" episode to figure out Gordo loves her. And she needs to have it spelled out to her by Kate of all people.
- Official Couple: With Gordo at the end of The Movie.
- Older Than They Look: This very trait of hers is the main reason Kate turned her back against Lizzie, as the former developed earlier than the latter in regards to puberty.
- One of the Boys: She gets on better terms with her male peers when trying out for the football team.
- Only Known by Their Nickname: She's seldom called by her real first name, "Elizabeth".
- Pink Means Feminine: Her animated consciousness wears a pink shirt.
- Platonic Life-Partners: She's best friends with Gordo. Until The Movie, in which the pair become an Official Couple.
- Plot Allergy: In the episode "Rumors", it is revealed that Lizzie is allergic to strawberry ice cream.
- Security Blanket: Her stuffed pig toy Mr. Snuggles, a prized possession of hers which she's had ever since age two. Her animated self in fact yearns for it while lost in the mall in "Between a Rock and a Bra Place".Animated Lizzie: I need Mr. Snuggles!
- Single Girl Seeks Most Popular Guy: She likes Ethan Craft, the popular guy at school. However, Ethan is actually a very nice if dimwitted dude along with being very good-looking and implied to be good at athletics.
- Slapstick Knows No Gender: Both her human self and animated self suffer from slapstick comedy.
- Strong Family Resemblance: Lizzie resembles her mother.
- You Go, Girl!: In one episode Lizzie tries out playing football with the boys and discovers she enjoys it. Uniquely the guys have no problem with her playing, once she shows how good she is at it. The conflict instead comes from the other girls who mock her for being "one of the boys". Lizzie then learns An Aesop that it's possible to be a Girly Girl and enjoy roughing it up.
Lizzie's best female friend. She is the most self-conscious character in the show. She has a hard time dealing with being a teenager and growing up.
- Adorkable: Much like her best friend, she's socially awkward and good-natured.
- Cool Loser: Along with Lizzie and Gordo. All three are perfectly likable people in every way but they aren't very popular.
- Deadpan Snarker: Miranda is witty and never afraid to speak her mind.
- Hair Decorations: Known for wearing all sorts of these, along with various hairstyles throughout the show.
- Heterosexual Life-Partners: With Lizzie.
- The Lancer: As Lizzie's best friend.
- Love Makes You Dumb: In "Movin' On Up" she acts this way over a boy.
- The McCoy: To Lizzie's The Kirk and Gordo's The Spock. She's the most impulsive and rebellious.
- Nice Girl: Less sweet and idealistic than Lizzie, but just as good-natured.
- Put on a Bus: In the last six episodes as well as the movie.
- Single Girl Seeks Most Popular Guy: Like Lizzie and most girls, she has a crush on Ethan.
- Straw Loser: A subtle example. She's usually the sidekick who is pushed aside in favor of Lizzie and, to a lesser extent, Gordo. Many episodes start with her and Lizzie in the same situation, but it's always Lizzie who gets the opportunity to shine throughout the episode. Even if they are ¡Three Amigos!, Gordo seems to care only about Lizzie. Her few spotlight episodes tend to be negative, like being unable to talk to a boy or being a terrible actress.
- Token Minority: She's Mexican.
David "Gordo" Gordon
Lizzie's best male friend, and a very loyal one at that, as seen in the movie. They were friends since a very young age. Gordo is a straight A student, being the smartest and practical kid on the show.
- Adorkable: He comes off as this due to his generosity and willingness to affiliate himself with the girls without peer pressure.
- Big Damn Kiss: Shares one with Lizzie in the movie.
- Cannot Spit It Out: He has a crush on Lizzie but has trouble confessing his love.
- Childhood Friend Romance: He and Lizzie become an Official Couple in the movie.
- Control Freak: He can be over-perfectionistic or obsessive when involved in his film projects, though fortunately he can be very reasonable when he realizes it's becoming a nuisance.
- Cool Big Bro: He sometimes bonds with Lizzie's brother Matt.
- Cool Loser: Along with Lizzie and Miranda. All three are perfectly likable people in every way but they aren't very popular. With Gordo, it's implied that it's because he's pretty short and unathletic.
- Deadpan Snarker: Has his sarcastic moments, especially due to his Only Sane Man status.
- Hollywood Nerd: Is smart, and while he's not a typical stud, he's still good looking enough to catch the attention of a few certain girls.
- Jewish and Nerdy: He's revealed to be Jewish American and he's a smart studious boy.
- Nice Jewish Boy: Also a nice, reasonable person.
- One of the Boys: Gender-inverted example: He regularly associates himself with Lizzie and Miranda, making it more like "One of the Girls".
- Only Known by Their Nickname: His full name is David Gordon, but everyone just calls him Gordo.
- Only Sane Man: In a subversion of Women Are Wiser, Gordo is more mature, reasonable and practical than Lizzie and Miranda.
- Shorter Means Smarter: One of the shortest students and one of the smartest. He's even shorter than both his female friends that aren't particularly tall to begin with. He's usually okay with it, but becomes pretty insecure about it when a girl who he likes rejects him because of his stature.
- The Smart Guy: The smartest in his group of friends: the one with most common sense and the best grades.
- The Spock: To Lizzie's The Kirk and Miranda's The McCoy.
- Teen Genius: He's academically brilliant.
- Teens Are Short: He is one of the shorter students in his school, and in one episode feels insecure about it after a girl he likes rejects him over it.
Lizzie's younger brother. He can be annoying and very clever. Regardless, he does care about Lizzie and his relationship with her is no different than any other sibling relationship.
- The Ace: He's done quite a fair bit of things in his youth with success.
- Alliterative Name: Matt Mcguire.
- Aww, Look! They Really Do Love Each Other: Regardless of their squabbles, he and Lizzie will come through for one another when the chips are down.
- Annoying Younger Sibling: Towards Lizzie, whom he often pranks and insults. Lizzie can give as good as she gets though.
- Deadpan Snarker: Of the Mouthy Kid variety. Especially towards his older sister.
- In Touch with His Feminine Side: He and Lanny take up an entire plot dedicated to cheerleading, which weirds out his dad to no end.
- Jerk with a Heart of Gold: He may tease his sister and their parents, but he very much cares about them.
- Kid-Appeal Character: In a show aimed primarily towards pre-teens and teenagers, Matt fills the bill as a much-needed kid character, behaving more childishly than any of the other main cast.
- Manipulative Bastard: A clever schemer and troublemaker.
- Precocious Crush: He develops a crush on Miranda in "Working Girl".
- Spiritual Successor: Has one in Shake It Up!'s Flynn Jones.
- Voice for the Voiceless: He speaks for his silent friend Lanny when he's around.
Lizzie's mother. Always gives advice to Lizzie and is sometimes strict to her children when needed.
- Good Parents: She knows what's right for her children and only uses aggression as a form of Tough Love.
- Hair of Gold, Heart of Gold: Like her daughter Lizzie.
- Happily Married: To Sam.
- Mama Bear: She gets pretty defensive if her children are messed with.
- Nice Girl: A good and caring mother.
- Meganekko: Jo wears glasses.
- Only Sane Woman: Out of the whole family, she's the most down-to-earth and pragmatic.
- Well-Intentioned Extremist: She can hold a rather abrasive attitude towards Lizzie at times, but she just wants what's best for her.
- Women Are Wiser: She generally has it together better than her husband at least.
Lizzie's father. Like most sitcom dads, he isn't the brightest, but he's a nice enough guy.
- Bumbling Dad: He is a well-meaning person and very nice, but not always the best with advice. However, he does get a moment to shine when comforting his daughter after Jo couldn't.
- Happily Married: To Jo.
- Nice Guy: He always tries his best to help Lizzie.
The Alpha Bitch and an old friend of Lizzie's. They were the best of friends but had a falling out shortly before the series. She becomes the main antagonist of most of the series.
- Alpha Bitch: She's the most popular as well as the meanest girl at school.
- Big Bad: For most of the show she's the main antagonist, though in the movie she has a HeelFace Turn and the role is taken over by Paolo Valisari.
- The Bully: Being the Alpha Bitch, she's quite psychologically abusive to Lizzie and Miranda.
- The Cheerleader: The Head Cheerleader to be precise.
- Defrosting Ice Queen: None more so than in The Movie, in which she was built up to more-or-less replace Miranda.
- Even Evil Has Standards: Compared to Claire. When Kate was head of the cheer squad, she didn't deny other girls the use of the bathrooms or all students use of the lunch tables.
- Evil Former Friend: To Lizzie. One episode revolves around her and Lizzie having to work together. Turns out they were best friends when they were younger, but then she developed early and became popular.
- HeelFace Revolving Door: In the backstory she was originally Lizzie's best friend. After becoming popular, she turns into the Alpha Bitch and Arch-Enemy we see on the show. She has a HeelFace Turn again In The Movie.
- Held Back in School: In one episode, it's revealed that Kate's actually a year older than the other kids in her grade, due to getting held back in Kindergarten for some reason.
- Informed Attractiveness: She is portrayed as being the Queen Bee of the school, and much is made of her "bustiness." In a show like this, she's not any more attractive than most background girls. However, it's revealed that she actually was an early bloomer regarding puberty, which is where her popularity and subseqent Alpha Bitch attitude came from. By developing early, she stood out from the rest of the girls and by the time of the serious, she maintains her popularity from that even though most of the girls have caught up.
- Jerkass: The meanest girl at school, she's very prone to harassing Lizzie and Miranda.
- Lovable Alpha Bitch: At the start of the series, she is the Alpha Bitch stereotype. Later on she has moments of sympathy, such as when her sister and mother seem to show her little to no affection, and some moments that show her character develop, such as helping Lizzie and Gordo in the movie (also becoming a Shipper on Deck for the two).
- Manipulative Bitch: She can manipulate boys into doing anything.
- Pet the Dog: One episode has Lizzie and Kate work together and reconcile their former friendship, sharing a smile at the end of the episode. While it doesn't stop Kate from behaving like an Alpha Bitch, she starts to show some more genuinely kind moments over the course of the series and in The Movie. In the movie, she takes a HeelFace Turn.
- Plot Allergy: It's revealed in the episode "Pool Party" that Kate is allergic to temporary tattoo ink.
- We Want Our Jerk Back: In the episode "The Rise and Fall of the Kate Empire," Lizzie and her friends assist Kate in getting her spot in the cheer squad back after Claire is considered worse than her.
A handsome and popular yet dimwitted boy in Lizzie's school. Almost all the girls want him and he's pretty nice (except in the first season).
- Big Man on Campus: The most popular and good-looking boy in the school.
- Brainless Beauty: He may be attractive, but also dimwitted and clueless.
- Characterization Marches On: In the first season, he was more-or-less a male version of Kate, but in later seasons, he became a much nicer person.
- Chick Magnet: The target of affection for every girl in the school.
- Cloudcuckoolander: Complete with "wooshing" sound-effects when he says dumb things.
- The Ditz: Apparently it's a family trait.
- Informed Attractiveness: His good looks are regularly mentioned by Lizzie and other girls.
- Kindhearted Simpleton: Not very bright, but kind and friendly enough, even to the less popular kids.
- Nice Guy: He's nice to everyone (except in the first season where he was portrayed more as a jerkish bully due to Early Installment Weirdness).
- Popular Is Dumb: Despite his stupidity, he's the Big Man on Campus.
The least popular boy at Lizzie's school. Despite this he is pretty nice to people, and gets a friendly enough treatment from Lizzie. He had a crush on Lizzie, but when she decides not to return the feelings, he was pretty understanding.
- Abhorrent Admirer: To Lizzie and, on occasion, Miranda and Kate.
- Butt-Monkey: Unpopular and bullied by other students.
- Extraverted Nerd: Eccentric, stereotypically nerdy and uncool, Casanova Wannabe and Small Name, Big Ego, so yes, he fills this out.
- He Cleans Up Nicely: One episode had Lizzie go on a pity date with him and when he arrived at her house, she was bowled over by his appearance (clean combed hair and a different outfit than he usually wears).
- Nice Guy: As Lizzie discovers, he's a perfectly nice, normal guy outside school.
- Unlimited Wardrobe: Subverted. Probably the only character who doesn't fall into this.
- Wacky Guy: The Extraverted Nerd variant.
Kate's lackey and current best friend (until the movie).
- Beta Bitch: While generally the second-in-command to Kate, she can actually be a lot meaner than Kate herself at time.
- Black Best Friend: To Kate.
- The Cheerleader: A popular cheerleader like her friend Kate.
- Dragon-in-Chief: When given the opportunity.
- Girl Posse: To Kate.
- Jerkass: Unlike Kate, she never shows having some Hidden Depths or any redeeming qualities.
- Token Minority: One of the few black recurring characters.
Matt's best friend who hasn't spoken a single word in the series.
- Black Best Friend: To Matt.
- Creepy Child: Sam finds his tendency to not talk creepy, though Jo thinks that he's just shy.
- Famous Ancestor: He's related to Crispus Attucks.
- Silent Bob: He never speaks, but Matt seems to have no problem communicating with him. Matt seems to be one of the few who can understand him no problem, much to the confusion of his parents. Stranger still when Matt and Lizzie switch bodies, Lizzie is able to easily understand what Lanny 'said' before Toon!Lizzie (Lizzie's inner self) was confused by how she understood him.
- Token Minority: One of the few black recurring characters.
A handsome Italian pop star that Lizzie meets in the movie. He befriends her during her trip to Rome. He offers to have him sing in his ex girlfriend, Isabella's place at a concert.
- Big Bad: He tries to manipulate Lizzie into performing onstage as Isabella so he can destroy Isabella's career and humiliate Lizzie onstage by fooling everyone that Isabella lip syncs.
- Blatant Lies: He lied to Lizzie about Isabella lipsynching and him actually singing.
- Faux Affably Evil: He's pretty likable before his Evil Plan is revealed.
- Hollywood Tone-Deaf: It was revealed that Paolo lipsynchs because he can't really sing at all.
Paolo's ex-girlfriend who looks identical to Lizzie, except for the fact that she's a brunette rather than a blonde. Paolo befriends Lizzie because of this.
- Identical Stranger: She and Lizzie look pretty much identical to each other—the only actual physical difference between them is their hair colors, with Isabella being a brunette and Lizzie being a blonde.
- Idol Singer: She is an Italian pop star.
- Something Only They Would Say: A vicarious example. Isabella proves to Lizzie that Paolo is manipulating her by saying the pickup line he just gave her.
The princial of the high school Lizzie and Gordo will be attending, as well as the chaperone of the class.
- Jerk with a Heart of Gold: She starts to show off her softer side towards Gordo and Sergei at the end.