Lucy Hale (Wizards of Waverly Place)
Lucy Hale, who later went on to star in Pretty Little Liars, had a two-episode run on Wizards of Waverly Place as Miranda Hampson, the new, edgy girl at school who becomes Justin’s girlfriend. Does the talking zit episode ring a bell?
Austin Butler (Hannah Montana)
Austin Butler guest starred on Hannah Montana as Miley’s blind date who ended up being a total scaredy cat.
Wilmer Valderrama (Wizards of Waverly Place)
Wilmer Valderrama played Uncle Ernesto — who the Russo siblings struggle to hide their magic from — on an episode of Wizards of Waverly Place.
Evan Peters (Phil of the Future)
Before American Horror Story, Evan Peters had a recurring role as Seth Wosmer in Season 1 of Phil of the Future.
Kat Graham (Hannah Montana)
Before The Vampire Diaries, Kat Graham played Jackson’s super smart girlfriend in an episode of Hannah Montana.
Victoria Justice (Suite Life of Zack and Cody)
Before Victorious, Victoria Justice appeared as Rebecca in the beauty pageant episode of Suite Life, where Cody goes undercover as a female contestant to get to know her.
Alison Brie (Hannah Montana)
Alison Brie, from Glow and Community, played Jackson’s crush who was an awful hairdresser in an episode of Hannah Montana.
Nathan Kress (Suite Life of Zack and Cody)
Before iCarly, Nathan Kress appeared on the “Back in the Game” episode of Suite Life as Jamie — Zack and Cody’s friend who had recently been in an accident that put him in a wheelchair.
Jaden Smith (Suite Life of Zack and Cody)
Jaden Smith appeared in an episode of Suite Life as a karate-master — in a nod to his role in Karate Kid — tasked with teaching Cody his skills.
Cindy Crawford (Wizards of Waverly Place)
Cindy Crawford appeared in an episode of Wizards of Waverly Place as Bibi Rockford, a model who Alex brings to life from a poster in her brother’s room.
Larry David (Hannah Montana)
Larry David guest starred as himself on an episode of Hannah Montana. Larry and his kids spend an hour waiting for a table at this ~very fancy~ restaurant while Hannah gets seated right away.
Emma Stone (Suite Life of Zack and Cody)
Emma Stone, well, kinda guest starred on the “Crushed” episode of Suite Life, where she voiced London’s dog, Ivana. The role was actually her first ever voice-acting gig!
Ray Romano (Hannah Montana)
Ray Romano guest starred as himself in an episode of Hannah Montana. He auctioned off a round of golf with himself at a charity fundraiser, and Hannah had literally no idea who he was.
Justin Baldoni (Suite Life of Zack and Cody)
Before Jane the Virgin, Justin Baldoni played the fencing instructor that Maddie and London had crushes on in an episode of Suite Life.
Jay Leno (Hannah Montana)
Jay Leno appeared as himself on the episode of Hannah Montana where Hannah goes on The Tonight Show to reveal that she’s really Miley Stewart.
Daryl Sabara (Wizards of Waverly Place)
Daryl Sabara, who you might recognize from Spy Kids, guest starred on Wizards of Waverly Place as T.J. Taylor, another young, troublemaking wizard who Alex befriends.
Ayesha Curry (Hannah Montana)
Before she was a celebrity chef and married to Warriors star Stephen Curry, Ayesha briefly appeared in an episode of Hannah Montana as Jackson’s irritated date.
Paula Abdul (That’s So Raven)
Paula Abdul guest starred in an episode of That’s So Raven as a talent scout who goes undercover as a janitor for a TV show.
Octavia Spencer (Wizards of Waverly Place)
Octavia Spencer guest starred in Wizards of Waverly Place as Dr. Evilini, an evil professor at Wiz Tech.
Kate Flannery (Wizards of Waverly Place)
Kate Flannery, from The Office, appeared in an episode of Wizards of Waverly Place as Harper’s mom, who is in town for an audition.
Steven Tyler (Lizzie McGuire)
Steven Tyler from Aerosmith guest starred in a Christmas episode of Lizzie McGuire. He played Santa Clause in a holiday parade, even singing “Santa Clause is Coming to Town” during the episode.
Shakira (Wizards of Waverly Place)
Shakira made a guest appearance as herself in Wizards of Waverly Place, when the gang learns that she’s actually Uncle Kelbo, who is unable to control when he switches between being her and himself.
Niecy Nash (That’s So Raven)
Before Claws and Reno 911, Niecy Nash made an appearance on That’s So Raven as Madame Cassandra, a fake psychic on TV.
Zachary Quinto (Lizzie McGuire)
Zachary Quinto, who you might recognize from American Horror Story: Asylum or the new Star Trek films, played an uptight commercial director in an episode of Lizzie McGuire.
Rachel Dratch (Wizards of Waverly Place)
Rachel Dratch, who you might recognize from SNL, guest starred as the grown-up version of Harper Finkle, Alex’s best friend.
Doris Roberts (Lizzie McGuire)
Doris Roberts, from Everybody Loves Raymond, guest starred in an episode of Lizzie McGuire as Gordo’s sassy grandmother who comes to visit while his parents are away.
Tiffany Haddish (That’s So Raven)
Tiffany Haddish, before her Girls Trip fame, made a brief cameo in an episode of That’s So Raven as a tour guide in the bio-dome, who warns the group about a man-eating plant.
Shaquille O’Neal (Sonny With A Chance)
Shaq guest starred on the Halloween special of Sonny With A Chance, appearing in the “Check It Out Girls” sketch.
Cyndi Lauper (That’s So Raven)
Singer Cyndi Lauper guest starred on an episode of That’s So Raven as Ms. Petuto, an art teacher who takes interest in Chelsea’s work.
Dwayne “The Rock” Johnson (Hannah Montana)
And finally, The Rock makes a rather iconic appearance as himself in an episode of Hannah Montana, where Miley and Lilly secretly dress him up to take an embarrassing picture.