List of alter-egos

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Throughout the series, SpongeBob and some of the other main characters have acquired alter-egos (normally only lasting one episode).

SpongeBob SquarePants

• The Quickster - Mermaid Man and Barnacle Boy V
• SpongeBob RoundPants - To SquarePants or Not to SquarePants
• The Krabby Patty Burglar - Krabby Land
• MuscleBob BuffPants - MuscleBob BuffPants
• SpongeBob ScaredyPants - Scaredy Pants
• Short Order Boy - Krusty Krushers
• The Yellow Avenger - The Yellow Avenger
• The Bird Man of Bikini Bottom - The Sponge Who Could Fly
• CheeseHead BrownPants - What Ever Happened to SpongeBob?
• Fry Boy - Mermaid Man vs. SpongeBob
• The Normal SpongeBob - Not Normal
• SquidBob - SquidBob TentaclePants
• Invincibubble - The SpongeBob Movie: Sponge Out of Water

Patrick Star

File:PatriciaWork.jpg

• Patricia - That's No Lady
• The Elastic Waistband - Mermaid Man and Barnacle Boy V
• Mr. Dr. Prof. Patrick - Chimps Ahoy
• King Patrick - Rule of Dumb
• The Pink Patty - Krusty Krushers
• Patrick-Man - Patrick-Man!
• Mr. Superawesomeness - The SpongeBob Movie: Sponge Out of Water

Squidward Tentacles

File:Captain magma2.jpg

• Captain Magma - Mermaid Man and Barnacle Boy V
• Mr. Handsome - The Two Faces of Squidward
• The Normal Squidward - Not Normal
• Wolfgang Amadeus Tentacles- Sleepy Time
• Jen - As Seen on TV
• SquidBob- SquidBob TentaclePants
• Smelly - The Thing
• Sour Note - The SpongeBob Movie: Sponge Out of Water

Eugene H. Krabs

• Captain Krabs - "Arrgh!," "Grandpappy the Pirate"
• Sir Pinch-a-Lot - "The SpongeBob Movie: Sponge Out of Water"

Sandy Cheeks

• Miss Appear - Mermaid Man and Barnacle Boy V
• The Rodent -The SpongeBob Movie: Sponge Out of Water

Sheldon J. Plankton

• Peter Lankton - Fear of a Krabby Patty
• Mr. Plankton - The Algae's Always Greener
• The Amazing Plankton - Culture Shock
• Great-grammy-ma - Gramma's Secret Recipe
• Plank-Ton - The SpongeBob Movie: Sponge Out of Water

Pearl Krabs

• Amy - As Seen on TV

Mermaid Man

• Ernie - Mermaid Man Begins

Barnacle Boy

File:The Dirty Bubble, Man Ray, & Barnacle Boy2.jpg

• Tim - Mermaid Man Begins
• Barnacle Man - Mermaid Man and Barnacle Boy V