Nickelodeon's been around for forever and a day and has produced some true staples of our childhood. It launched the careers of so many faves — including Ariana Grande, Kenan Thompson, and Amanda Bynes — and gifted us with amazing catchphrases like "Hug me, brotha!"
But several sneaky celebs guest-starred on other Nickelodeon shows before, during, and after filming their own series. Expand your Nick knowledge with these stars' various roles, excluding actors playing themselves and crossover episodes.
[Note: Nickelodeon and MTV News are both owned by Viacom.]
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NickelodeonThe Drake & Josh and iCarly actress guest-starred on episodes of Zoey 101, Unfabulous, and Just Jordan in 2007 — playing a brainiac, a magician's assistant, and a piano prodigy, respectively.
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NickelodeonFreddie Benson from iCarly started his Nickelodeon career as an uncredited kid on Drake & Josh. During the height of his iCarly fame, Kress guest-starred as Prince Gabriel on True Jackson, VP, and later as an uncredited audience member on Victorious.
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NickelodeonSam Puckett from iCarly and Sam & Cat once kissed Dustin on Zoey 101; played True Jackson's archenemy, Pinky, on True Jackson, VP; and freaked out Tori Vega on Victorious.
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NickelodeonMark Del Figgalo from Zoey 101 guest-starred on the Victorious series finale as the guy in the Pajelehoocho commercial.
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NickelodeonAs MTV News previously pointed out, the Zoey 101 star appeared in 41 episodes of Ned's Declassified School Survival Guide as a background actor. He also guest-starred as Jake Krandle on iCarly the same year he joined the Zoey 101 universe.
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NickelodeonEight years after finishing All That, De Sena guest-starred as a texting competition judge on Sam & Cat.
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NickelodeonAfter starring on both The Adventures of Pete & Pete and All That, Tamberelli played Spike Cipriano on 100 Deeds for Eddie McDowd.
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NickelodeonIn between filming Kenan & Kel in the ’90s and Game Shakers in the ’10s, Mitchell played rapper Peezy B on Sam & Cat and a sensei on The Thundermans.
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NickelodeonThis All That star is a major Nickelodeon veteran. He guest-starred on The Secret World of Alex Mack, Drake & Josh, and Sam & Cat. Server also appeared on Kenan & Kel, 100 Deeds for Eddie McDowd, AND Ned's Declassified School Survival Guide. Damn, Ear Boy!
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NickelodeonWhile in the middle of filming All That, Brummet guest-starred on Drake & Josh as Drake Parker's inappropriately laughing girlfriend, Kelly Hayfer.
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NickelodeonThe All That star who gave us one-half of the "Sugar and Coffee" sketches guest-starred on Game Shakers in 2016 as a teacher educating kids about "King Fuhd," a parody of King Tut.
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NickelodeonFoiles's "Sugar and Coffee" sketch partner on All That appeared on both The Secret World of Alex Mack and The Amanda Show.
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NickelodeonThe All That actor who starred with Kenan Thompson in the "Inconvenience Store" sketches also appeared on Kenan & Kel and Taina during the same time.
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After playing Tammy, an exchange student from Tennessee, on The Amanda Show, Snow guest-starred on episodes of Victorious and Sam & Cat. She was even Chase's new love in What Did Zoey Say?, the 10-years-later follow-up to the Zoey 101 time-capsule episode. Fun fact: Snow is a casting director for tons of Nick shows.
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NickelodeonBefore he became Andre Harris on Victorious, Thomas had guest-starring roles on Just for Kicks, Just Jordan, and iCarly. Three years after he played Harper on iCarly, Thomas returned to the show, but this time as his Victorious persona.
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NickelodeonThe Victorious and Zoey 101 star worked on both True Jackson, VP and iCarly, playing a girl who wants to fight Carly Shay on the latter.
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NickelodeonJade West from Victorious once guest-starred on Big Time Rush as Heather Fox, James and Carlos's old camp friend.
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NickelodeonObnoxious Trina Vega on Victorious played Chase Matthews's snotty girlfriend, Rebecca, on Zoey 101, and guest-starred on the Nora Dershlit episode of iCarly. She reprised her Victorious role on another iCarly episode a year later.
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NickelodeonJosh Nichols's archenemy turned girlfriend, Mindy Crenshaw, on Drake & Josh was also a P.C.A. student named Stacy on Zoey 101.
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NickelodeonDrake & Josh's Premiere manager Helen guest-starred on True Jackson, VP as Amanda Cantwell's temp, and on iCarly as an uncredited art class student.
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NickelodeonBefore Trainor guest-starred on Victorious as his iCarly persona, Spencer Shay, he played an uncredited audience member on an early episode.
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NickelodeonWacky Lewbert from iCarly is another big Nickelodeon veteran. He's been the Crazy Hat Man on The Amanda Show, a sassy worker at a dance competition on Drake & Josh, and Schwahbbit on Henry Danger. Plus, Rowley played a homeless man who ended up with Moody's dad's severed toe on "Moody's Point," as well as various characters on All That.
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NickelodeonThe Just Jordan star guest-starred on Ned's Declassified School Survival Guide as James K. Polk Middle School's new class clown a year before his show aired.
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NickelodeonBefore she was Lulu Johnson on True Jackson, VP, Argota played a girl named Kathy on an early iCarly episode.
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NickelodeonThe Unfabulous and Big Time Rush actress crushed on Larry Garcia on The Brothers Garcia, and later played Fake Carly on iCarly.
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NickelodeonThe Big Time Rush star guest-starred as Justin, a cocky member of the band Night Lizard, on School of Rock.
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NickelodeonBefore joining Big Time Rush, Maslow guest-starred on iCarly as heartthrob Shane, a boy who Carly and Sam fight over.
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NickelodeonThe Big Time Rush alum played King Bee on two episodes of Ned's Declassified School Survival Guide, and later stopped by The Thundermans as a tech rider.
