He is a fry cook working at the Krusty Krabs.

The way they drew Spongebob is pretty funny. He is a yellow square sea sponge with holes. But he has a school boy uniform on. He has a gap between his front teeth which makes him look real funny.

At the start of an new episode you might see him wake up in his pineapple shaped house.

Patrick

Patrick is a purple starfish who has known Spongebob for a while now. He is pretty clumsy and goofy looking, but when it comes to helping his friends, he tries his best.

Sandy

Sandy is a good friend of Spongebob who he meets in the earlier episodes of the show. She is a squirrel who lives in the ocean. her house is an underwater dome that is filled with oxygen. When Spongebob visited her once, he almost dried out.

She practices karate and when Spongebob knew about this, the two showed each other their moves.

Mr. Krabs

Spongebob his boss is at the Krusty Krabs is mr. Krusty. He is a on a mission to generate as much money as he can from his restaurant. This is quite funny, because he is real cheap and always looks for ways to save a buck.

Squidward

Squidward is the angry and quite jealous sea animal you will find in the cartoon. This is quite funny, because his arrogance usually gets him in trouble instead of helping him out. He hates his job at the Krusty Krabs

What makes the cartoon also so interesting is that many impossible things happen in the world of Spongebob. It is not impossible to see cars driving by or electricity being used under water.

Spongebob and his friends make this a really funny cartoon. There are many jokes that will fly over the head of young watchers, but most of them will be understood.