The SpongeBob guard is shown to resemble SpongeBob and his normal attire, but with a blue hat, and instead of a red tie, he wears a blue scarf tied in a knot.
Role in episode
After Captain Scarfish sends Mr. Krabs to the brig for disobeying his orders to make the night's dinner disgusting, he assigns two guards, one of them being the SpongeBob guard, who, during the time, is playing with a toy boat. While in the brig, Mr. Krabs manages to get some useful information from the SpongeBob guard, one of them being that he is an aspiring cook and Krabs is able to get him to bring down some cooking supplies from the kitchen and teach him how to cook.
As the SpongeBob guard is making a mini cathedral from cotton candy, Mr. Krabs takes leftovers and makes a key. The SpongeBob guard reveals that he is the only sailor not sick from the moldy crust that Captain Scarfish had force fed the others, as he cooked his own food.