Captain Cheems is a character in the Bunny Adventure series. He is a meme and a pirate. He looks like the Cheems meme and he wears a pirate hat and carries around a sword.

One day, while sitting on his boat on the shore from Bunnytown, he met two bunnies named Steve and Peter. Then, they decide to go on an epic adventure to get the treasure from Pirated Island. When they arrive, they find the X, the spot where the treasure is located. But Captain Cheems can't dig it, because he forgot his pickaxe at home. He tells Steve and Peter the bunnies to find him a pickaxe to dig the X with and get the treasure.

Some time later, the bunnies arrive with a pickaxe they got as a gift from Santa Claus, which means that the meme team can now dig the treasure. They dig the X then end up in the Treasure Caves, where they find the treasure. While trying to open it, Captain Cheems' dad, named Daddy Doge, the final boss, appears. He gets mad at the meme team for trying to dig up his treasure, so he fights them. After a long battle, Captain Cheems decides to sacrifice himself and become a powerup for the Steve and Peter the bunnies to use. When they use the powerup, Daddy Doge gets overwhelmed and dies. Then the bunnies can open up the treasure, but when they do, they realised that all that was inside was a piece of paper saying "The only treasure is friendship". Very dissapointing.

Later, in Bunny Adventure Sound Star, Captain Cheems somehow revives and gets the ability to generate infinite Captain Cheems Powerups.