Anti-SpongeBob is anti version of SpongeBob. He is married to Anti-Unikitty.
He is voiced by Tom Kenny who plays the normal SpongeBob.
Master Frown, Lord Boxman and Anti-SpongeBob are the main antagonists of Cartoon Odd Baby, where they planned to capture the first Cartoon baby born in thousands of years, Zim and use his uncontrolled magic to take out the other magical races and the other Cartoons world Until SpongeBob, Zim, Gumball, Unikitty and other cartoons characters stop their plains and save their baby. He was also the main antagonists in the SpongeBob Unikitty Power Hour 2 special.