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17 Celebs You Totally Forgot Were On 'Lizzie McGuire'

For starters, Spock beamed down to hang out with Matt McGuire.

Disney Channel's hit show "Lizzie McGuire" followed the trials and tribulations of middle school and quickly made Hilary Duff a household name. Suddenly, every pre-teen girl wanted to be the always stylish, sometimes clumsy Lizzie McGuire.

Running from 2001 to 2004 (and an Italian adventure movie in 2003), the show's run included several familiar faces throughout Lizzie's world -- whether it was at school, the mall or even her own house. How many of these celebs do you remember seeing?

Zachary Quinto

Disney

Lizzie McGuire

The new Spock and "American Horror Story" alum played a snooty commercial director who insulted Sam McGuire (Robert Carradine) and got hilariously told off by Matt (Jake Thomas).

Frankie Muniz

Disney

Lizzie McGuire

The "Malcolm in the Middle" star played himself, coming to Lizzie's town to shoot a movie. This was also the episode where Ethan Craft (Clayton Snyder) said this absolute gem of a line: "Hey, Frankie how'd you get out of the TV?"

Orlando Brown

Disney

Lizzie McGuire

The future Eddie Thomas on "That's So Raven" was Travis Elliot, a boy who acted in a school play with Miranda (Lalaine).

Steven Tyler

Disney

Lizzie McGuire

In a special Christmas episode, the Aerosmith frontrunner played Santa Claus who rocked out during a holiday parade. Oh, and Tyler's kids Taj and Chelsea Tallarico had cameos at the end of the episode, giving their dad Santa crap for not "looking" like Jolly Old St. Nick.

Haylie Duff

Disney

Lizzie McGuire

Hilary's big sis played Amy, Kate Sanders (Ashlie Brillault)'s cousin, who was just as big of a snob as Kate. Seriously, homegirl was the queen of throwing shade.

Kyla Pratt

Disney

Lizzie McGuire

The voice of Penny Proud on "The Proud Family" played Gordo's (Adam Lamberg) girlfriend Brooke, who inadvertently drew Gordo's attention away from Lizzie and Miranda. Womp womp.

Sara Paxton

Disney

Lizzie McGuire

The "Aquamarine" star played Holly, the former class president who introduced Larry Tudgeman (Kyle Downes) as the new class president. She also said "really" at least 10 times in under one minute.

Phill Lewis

Disney

Lizzie McGuire

Prior to being the no-nonsense hotel manager Marion Moseby on "The Suite Life of Zack and Cody," he was the no-nonsense Principal Tweedy — aka the buzzkill who canceled Spring Fling until someone fessed up to knocking over a bust of the school's founding principal.

David Carradine

Disney

Lizzie McGuire

The late Carradine guest-starred as himself on his little brother Robert (Sam McGuire)'s show. He helped with Gordo and Matt's martial arts film for a contest. FYI, Carradine was known for his work in "Kung Fu" and the "Kill Bill" films.

Andrew McFarlane

Disney

Lizzie McGuire

Before he was Jason Treacy on "The Secret Life of the American Teenager," McFarlane played Thomas, Ethan's jock friend who got Lizzie to play on their team in a flag football game.

Joey Zimmerman

Disney

Lizzie McGuire

The "Halloweentown" alum played a kid who hit on Lizzie's mom (Hallie Todd), calling her "doll face" and "cupcake." Creepy.

Doris Roberts

Disney

Lizzie McGuire

The "Everybody Loves Raymond" and "Christmas Vacation" star played Gordo's unusual and "hip" grandmother who brought him sushi to school, wore bright colors and called Gordo "Gordo" instead of "David."

Sean Marquette

Disney

Lizzie McGuire

Before he played bb Mark Ruffalo's character in "13 Going on 30," Marquette was Adam Burton, a kid who tried to steal Matt McGuire's class clown title.

Raja Fenske

Disney

Lizzie McGuire

Prior to playing Emma Roberts' crush Jake Behari on "Unfabulous," Fenske was Li Tarak, a foreign exchange student from Indonesia who didn't understand much about American culture.

Greg Baker

Disney

Lizzie McGuire

The eccentric teacher Mr. Francis Corelli from "Hannah Montana" had a one-time stint as a security guard who accused Miranda of stealing lipstick.

Craig Anton

Disney

Lizzie McGuire

A few years before Anton became Phil Diffy's dad on "Phil of the Future," he was Lizzie, Miranda and Gordo's science teacher Mr. Pettus. He was the guy who had fake brain guts explode in his face. Gross.

Aaron Carter

Lucy Nicholson/Getty Images

Lizzie McGuire

OK, I highly doubt anyone could ever forget this iconic episode, but not including Aaron Carter on this list just seems wrong. Carter played himself on the show, shooting a music video and giving Lizzie a smooch.

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