- SpongeBob SquarePants
- Patrick Star
- Sydney Aquarium fish (debut)
- Children at Sydney Aquarium (debut)
- Woman at Bondi Beach (debut)
The short opens with SpongeBob and Patrick laughing as the backgrounds changes. A picture of SpongeBob and Patrick at the Sydney Aquarium can be seen. SpongeBob explains that some of the ocean's toughest criminals are locked up there. SpongeBob then tells that gave them an idea for a new TV show called Sponge Is the New Black.
Next, a picture of SpongeBob and Patrick at the Luna Park can be seen. Patrick says that his favorite ride there was the Devil's Drop, but SpongeBob says that he was scared of that ride and tells how Bondi Beach was more of his style and a picture of SpongeBob and Patrick at the Bondi Beach can be seen, as the short ends.
- Sponge Is the New Black is a parody of Orange Is the New Black.