In the SpongeBob Musical, Sheldon J. Plankton is the owner of the Chum Bucket and a rival to Mr. Krabs, the boss of SpongeBob SquarePants at the Krabby Patty. In the Broadway version of the character, Plankton wears an eye patch to give himself one eye.

In the SpongeBob Musical, Mr. Krabs is a greedy crab who happens to be SpongeBob SquarePants’s boss at the Krusty Krab restaurant. The musical brilliantly dresses his crab claws using oversized red boxing gloves.

SpongeBob SquarePants (voiced by Tom Kenny) works as a fry cook and lives in a pineapple under the sea. As befitting his appearance, he is a squeaky-clean square, annoying everyone around him with his cheerful optimism.

In Aquaman, Mera (Amber Heard) is a warrior and daughter of King Nereus and Queen Atlanna. She possesses hydrokinetic and telepathic powers that allow her to control her environment and communicate with Atlanteans.

In Spongebob Squarepants, Barnacle Boy is Mermaid Man’s sidekick. He is slight more sane than his counterpart, but is treated like a child by him despite his now elderly status.

Like SpongeBob SquarePants, the pink starfish is back in the SpongeBob Musical! Patrick Star takes on a humanoid form with a pink tie-dye shirt and the big hair to match.