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31 celebrities you probably forgot guest-starred on 'iCarly'

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31 celebrities you probably forgot guest-starred on 'iCarly'
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Long before his star-making performance as Elvis Presley in the biopic "Elvis," Austin Butler played a cute teen named Jake who had a terrible singing voice.

Long before his star-making performance as Elvis Presley in the biopic "Elvis," Austin Butler played a cute teen named Jake who had a terrible singing voice.
Austin Butler on season one of "iCarly."Nickelodeon

Nicole Gale Anderson, who starred in the Jonas Brothers-led Disney Channel sitcom "Jonas," had a minor role as a character named Tasha.

Nicole Gale Anderson, who starred in the Jonas Brothers-led Disney Channel sitcom "Jonas," had a minor role as a character named Tasha.
Nicole Gale Anderson on season one of "iCarly."Nickelodeon
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Doug Brochu from the Disney Channel sitcom "Sonny With a Chance" played a sweaty wrestler and friend of Freddie named Duke Habberman.

Doug Brochu from the Disney Channel sitcom "Sonny With a Chance" played a sweaty wrestler and friend of Freddie named Duke Habberman.
Doug Brochu on season one of "iCarly."Nickelodeon

After Spencer saved Plain White T's frontman Tom Higgenson, the band performed "Our Time Now" on "iCarly."

After Spencer saved Plain White T's frontman Tom Higgenson, the band performed "Our Time Now" on "iCarly."
The band Plain White T's on season one of "iCarly."Nickelodeon
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In season one, "WandaVision" star Randall Park portrayed a school teacher named Mr. Palladino at Ridgeway Junior High School.

In season one, "WandaVision" star Randall Park portrayed a school teacher named Mr. Palladino at Ridgeway Junior High School.
Randall Park on season one of "iCarly."Nickelodeon

"Victorious" star Leon Thomas III played a musically inclined character named Harper in season one.

"Victorious" star Leon Thomas III played a musically inclined character named Harper in season one.
Leon Thomas III on season one of "iCarly."Nickelodeon
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Ashley Argota, who starred on fellow Nickelodeon show "True Jackson, VP" played a gossiping teen at school.

Ashley Argota, who starred on fellow Nickelodeon show "True Jackson, VP" played a gossiping teen at school.
Ashley Argota on season one of "iCarly."Nickelodeon

Years before starring as Liam Dunbar on MTV's "Teen Wolf," Dylan Sprayberry appeared at the end of a season one episode as a prankster named Matthew.

Years before starring as Liam Dunbar on MTV's "Teen Wolf," Dylan Sprayberry appeared at the end of a season one episode as a prankster named Matthew.
Liam Sprayberry in season one of "iCarly."Nickelodeon
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In his TV debut, Big Time Rush's James Maslow played Shane, a guy who caught Sam and Carly's attention in the season two premiere.

In his TV debut, Big Time Rush's James Maslow played Shane, a guy who caught Sam and Carly's attention in the season two premiere.
James Maslow on season two of "iCarly."Nickelodeon

"Glee" star Harry Shum Jr. played a Japanese comedian in the 2008 "iCarly" TV movie "iGo to Japan."

"Glee" star Harry Shum Jr. played a Japanese comedian in the 2008 "iCarly" TV movie "iGo to Japan."
Harry Shum Jr. on "iCarly."Nickelodeon
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"American Idol" runner-up David Archuleta played himself, competing on the reality TV show "America Sings," in season two.

"American Idol" runner-up David Archuleta played himself, competing on the reality TV show "America Sings," in season two.
Miranda Cosgrove, David Archuleta, and Jennette McCurdy on season two of "iCarly."Nickelodeon

YouTuber Lucas Cruikshank, known by his alter ego Fred Figglehorn, appeared in season two. Unlike the rest of the world, Freddie didn't think the internet star was funny.

YouTuber Lucas Cruikshank, known by his alter ego Fred Figglehorn, appeared in season two. Unlike the rest of the world, Freddie didn't think the internet star was funny.
Lucas Cruikshank on season two of "iCarly."Nickelodeon
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Drew Roy, who had a recurring role as a heartthrob on "Hannah Montana," played a bad boy named Griffin with an unlikely Pee Wee babies obsession.

Drew Roy, who had a recurring role as a heartthrob on "Hannah Montana," played a bad boy named Griffin with an unlikely Pee Wee babies obsession.
Drew Roy on season two of "iCarly."Nickelodeon

Victoria Justice played an MMA fighter named Shelby Marx prior to starring in her own Nickelodeon show "Victorious."

Victoria Justice played an MMA fighter named Shelby Marx prior to starring in her own Nickelodeon show "Victorious."
Victoria Justice on season two of "iCarly."Nickelodeon
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"The Flash" and "To All the Boys" star Jordan Fisher played a kid named Clark who participated in a speed-dating contest to help Carly find a date for a girl's choice dance.

"The Flash" and "To All the Boys" star Jordan Fisher played a kid named Clark who participated in a speed-dating contest to help Carly find a date for a girl's choice dance.
Jordan Fisher on season two of "iCarly."Nickelodeon

"Glee" star Chord Overstreet also guest-starred as one of the speed daters in the aforementioned episode. He played a band member and former model.

"Glee" star Chord Overstreet also guest-starred as one of the speed daters in the aforementioned episode. He played a band member and former model.
Chord Overstreet on season two of "iCarly."Nickelodeon
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Model Emily Ratajkowski guest-starred as Tasha, Gibby's girlfriend, in season three.

Model Emily Ratajkowski guest-starred as Tasha, Gibby's girlfriend, in season three.
Noah Munck and Emily Ratajkowski on season three of "iCarly."Nickelodw

Cosgrove's "Drake & Josh" costar Drake Bell popped up in an episode dedicated to bloopers and outtakes.

Cosgrove's "Drake & Josh" costar Drake Bell popped up in an episode dedicated to bloopers and outtakes.
Drake Bell on "iCarly."Nickelodeon
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"Victorious" star Daniella Monet played a popular girl at a party thrown by Nora Dershlit.

"Victorious" star Daniella Monet played a popular girl at a party thrown by Nora Dershlit.
Daniella Monet on "iCarly."Nickelodeon

"Glee" star Jane Lynch portrayed Sam's mom, Pam. Carly fooled them into attending a therapy session to work out their issues.

"Glee" star Jane Lynch portrayed Sam's mom, Pam. Carly fooled them into attending a therapy session to work out their issues.
Jane Lynch on "iCarly."Nickelodeon
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Cosgrove reunited with “School of Rock” costar Jack Black in season four. He played Spencer’s online foe from the game “World of Warlords.”

Cosgrove reunited with “School of Rock” costar Jack Black in season four. He played Spencer’s online foe from the game “World of Warlords.”
Jack Black on "iCarly."Nickelodeon

"13 Reasons Why" actor Justin Prentice appeared as an "iCarly" intern named Brad. Carly tried to set him up with Sam, unaware that she was interested in Freddie.

"13 Reasons Why" actor Justin Prentice appeared as an "iCarly" intern named Brad. Carly tried to set him up with Sam, unaware that she was interested in Freddie.
Justin Prentice on "iCarly."Nickelodeon
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Kenan Thompson played himself in the "iCarly" and "Victorious" crossover TV movie, "iParty With Victorious."

Kenan Thompson played himself in the "iCarly" and "Victorious" crossover TV movie, "iParty With Victorious."
Kenan Thompson on "iCarly."Nickelodeon

"The Big Bang Theory" star Jim Parsons played a patient at a mental hospital named Caleb who thought he was from the future.

"The Big Bang Theory" star Jim Parsons played a patient at a mental hospital named Caleb who thought he was from the future.
Jim Parsons on "iCarly."Nickelodeon
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Former First Lady Michelle Obama guest-starred as herself in season five and helped Carly reconnect with her dad via video chat.

Former First Lady Michelle Obama guest-starred as herself in season five and helped Carly reconnect with her dad via video chat.
Michelle Obama on "iCarly."Nickelodeon

"Saturday Night Live" alum Taran Killam played one of Obama's secret service agents in the same episode.

"Saturday Night Live" alum Taran Killam played one of Obama's secret service agents in the same episode.
Taran Killam on "iCarly."Nickelodeon
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One Direction — then comprised of Harry Styles, Niall Horan, Louis Tomlinson, Liam Payne, and Zayn Malik — had a memorable appearance in season six.

One Direction — then comprised of Harry Styles, Niall Horan, Louis Tomlinson, Liam Payne, and Zayn Malik — had a memorable appearance in season six.
One Direction on "iCarly."Nickelodeon

Jimmy Fallon and Tina Fey met Carly virtually in the final season.

Jimmy Fallon and Tina Fey met Carly virtually in the final season.
Tina Fey and Jimmy Fallon on "iCarly."Nickelodeon
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Oscar winner Emma Stone guest-starred as a massive "iCarly" fan who couldn't resist the urge to ask Carly, Sam, and Freddie for a selfie when she saw them at an eatery.

Oscar winner Emma Stone guest-starred as a massive "iCarly" fan who couldn't resist the urge to ask Carly, Sam, and Freddie for a selfie when she saw them at an eatery.
Emma Stone on "iCarly."Nickelodeon

The cast of "Pawn Stars" appeared as themselves in season six, when the crew traveled to Vegas.

The cast of "Pawn Stars" appeared as themselves in season six, when the crew traveled to Vegas.
Rick Harrison and Austin "Chumlee" Russell of "Pawn Stars" on "iCarly."Nickelodeon
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