Plus, as the show became more popular, more celebrities started to have guest appearances on the show.

Amy Poehleris a very popular actress.

Amy Poehler plays the role of Granny.

A custom image featuring SpongeBob SquarePants against a colored background.

Image via Federico Napoli

Granny is a hilarious character who kidnaps Gary the snail.

She is a sweet woman but very creepy, andAmy Poehler brings a lot of humorto the role.

In the episode “The Original Fry Cook,” Patton Oswalt plays the character of Jim.

Spongebob Poster

Jim is the Krusty Krab’s original fry cook, as the name suggests.

It is great fun that,just likeRemy in Ratatouille, Jim is an excellent cook!

She has starred in films such asBridesmaidsand voice acted in films such asDespicable Me.

A split image with Amy Poehler in Parks and Rec and her character Granny in SpongeBob SquarePants.

Images via NBC and Nickelodeon

4Jon Hamm as Don Grouper

Season 9, “Goodbye, Krabby Patty?”

Jon Hammis known for playing many roles.

he plays the role of Don Grouper.

A split image with Patton Oswalt in Please Stand By and his character Jim from SpongeBob SquarePants.

Images via Magnolia Pictures and Nickelodeon

Don Grouper is an underwater version of his famous character, Don Draper!

5Johnny Depp as Jack Kahuna Laguna

Season 6, “SpongeBob SquarePants vs. “SpongeBob SquarePants vs. Johnny Depp guest starred in this episode as the character Jack Kahuna Laguna, a surfing legend and guru.

He teaches SpongeBob how to surf a huge legendary wave known as “the big one.”

A split image with Kristen Wiig in SNL and her character Madame Hagfish from SpongeBob SquarePants.

Images via NBC and Nickelodeon

In the episode “Night Light,” Mark Hamill plays the role of The Moth.

The Moth is Mermaid Man’s long-lost enemy.

This, of course, makes total sense consideringhis work as The Joker, who has similar traits.

Jon Hamm as Don Draper in Mad Men and his character Don Grouper from SpongeBob SquarePants.

Images via AMC and Nickelodeon

This was the perfectSpongeBob SquarePantsrole for the late, great Betty White.

He also played Batman in the1966 filmBatman.

After Spongebob gets kidnapped and Sandy goes through an action-packed adventure to save him, Sandy faces Master Udon.

Johnny Depp in Sleepy Hollow and his character Jack Kahuna Laguna in SpongeBob SquarePants.

Images via Paramount Pictures and Nickelodeon

He plays the character Lord Royal Highness in the episode “Atlantis Squarepantis.”

Lord Royal Highness also has a similar eccentric vibe to him.

As a fun piece of information, this episode was not David Bowie’s only contribution to theSpongeBob SquarePantsuniverse.

Mark Hamill in Star Wars The Force Awakens and his character The Moth in SpongeBob SquarePants.

Images via Lucasfilm and Nickelodeon

He also contributed a song to the Broadway musical!

David Bowie is definitely one of the most iconic cameos in the entire run ofSpongeBob SquarePants.

Keep Reading:How the Hell Did Nosferatu End Up in ‘SpongeBob SquarePants’?

A split image with Betty White in The Golden Girls and her character Beatrice in SpongeBob SquarePants.

Images via NBC and Nickelodeon

Adam West as Batman on the left and the character Young Mermaid Man from SpongeBob SquarePants on the right.

Images via 20th Century Fox and Nickelodeon

Pat Morita as Mr. Miyagi in Karate Kid and his character Master Udon from SpongeBob SquarePants.

Images via Columbia Pictures and Nickelodeon

David Bowie in The Man Who Fell to Earth and his character Lord Royal Highness from SpongeBob SquarePants.

Images via Columbia Pictures and Nickelodeon

Spongebob Squarepants

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