We start with Mr. Krabs, who is obviously the Bourgeois business owner who ruthlessly exploits Squidward and Spongebob. There is no question about this, it is repeatedly demonstrated that Mr. Krabs is a cruel boss, pathetically obsessed with money even at the expense of his own health ("Squid's Day Off"). He has attempted to charge his workers for breathing ("Squid on Strike"), forced them to work 24 hours a day, 7 days a week ("Graveyard Shift") and even traded Spongebob's soul for a measly 62 cents ("Born Again Krabs"). His continual protection of the Krabby Patty Secret Formula from Plankton, in which he enlists the involuntary help of Spongebob (who sees it as a valiant quest to protect the honor of the Krusty Krab) and Squidward (who is just in it for the paycheck), is nothing more than a cheap quest to protect the profit margin of the Krabby Patty, which he likely sells for more than it is worth. There are two ways his workers can react to this awful situation, and Spongebob and Squidward each represent one of them. Squidward is the class-conscious worker. He is fully aware of his miserable situation under the thumb of Mr. Krabs, thus resulting in his depressed and irritable attitude. He is clearly no stranger to Marxist ideas, being the only one of the two to quit due to Krabs' abuse ("Can You Spare a Dime?") and starting a strike against Mr. Krabs ("Squid on Strike"). He finds solace in art, and dreams of living in a utopian Fully Automated Luxury Communism, relaxing while making his art and sharing it with the world. It was Oscar Wilde, after all, who argued in The Soul of Man Under Socialism that only when their needs are fully accounted for can the artist truly hone their creative genius. He is continually disappointed with his fellow proletarians, the denizens of Bikini Bottom, most of all Spongebob.

If one thinks about it, Squidward really has no apparent reason to hate Spongebob. Spongebob is incredibly kind to Squidward, giving him gifts, saying good morning to him every day, altogether just trying to bring joy into Squidward's life. We are led to believe that Squidward is simply a curmudgeon who hates Spongebob for being happy while he is depressed. But is that really as deep as it goes? I think not. Once one realizes the Marxist undertones in Spongebob, the answer is clear: Squidward resents Spongebob because he is not class-conscious.

Despite his miserable working conditions, despite his boss's abusive behavior, Spongebob remains relentlessly optimistic. A classic case of the unconscious worker. He is cheerful and optimistic about his condition because he is unaware of anything beyond it. He has a Stockholm Syndrome-esque relationship with his boss, seeing him as a father figure (a classic symptom of blind obedience to authority) and enduring humiliating treatment because he holds on to the promise of one day owning the Krusty Krab, thus taking Krabs' place as the new Bourgeois. Given that he does not even know what a Strike is ("Squid on Strike") it is clear that he has never been exposed to the Marxist critique. In this context, Squidward represents the ill fate of the worker who does not respect his fellow worker. His attempt at revolution fails because he does not respect Spongebob, and simply tried to use him as a pawn for his own ends. But I digress.

Patrick represents what Marx called the Lumpenproletariat. Unemployed, he is left out of the class struggle, and even if he were involved in it would be too stupid to do anything, as symbolized in his attempt at employment in "Big Pink Loser". However his value to Squidward, the class-conscious worker who hopes for revolution, is underrated. Marxists from Bakunin onward have criticized Marx's rejection of the lumpenproletariat, and Stephen Hillenburg is no exception. Patrick clearly has the socialist spirit in him, recognizing the value of idleness and enjoying life's simple pleasures. Patrick never seeks after money or power as the Bourgeois expects him to, he simply wants to live out his life in peace. He values friendship over all things; he once admitted to spending all day waiting for his best friend, Spongebob, to come back ("New Student Starfish"). Could this represent how industrial work gets in the way of social bonds? Possibly. The point, my friend, is that Patrick in his idle lumpen state has captured the same optimism and joie de vivre of Spongebob. It could be said that the only difference between him and Spongebob is that Spongebob has subsumed to industrial work. In this way, he is the proletarian who is conscious of Socialist ideas without even knowing it.

Sandy and Plankton represent two possibilities of the future in Marxist analysis. Both of them are clearly college-educated scientists whose approach to technology differs based on their position towards Capitalism. Plankton represents the dystopian Capitalist future, the future of Cyberspace where companies like the Chum Bucket control society (remember that Plankton's expressed goal is to "take over the world"). He represents a cold, distant, inhuman, industrial future, as symbolized by the cold metal interior of the Chum Bucket.

Sandy, on the other hand, seems as well-versed in technology as Plankton, but has used it for a completely different purpose. She has created the treedome, an ecological, self-sustaining utopia in which she has everything she needs. She built a rocket to the moon for the sole purpose of exploration ("Sandy's Rocket"). She pursues science out of pure wonder and a desire for the fulfillment of knowledge, unlike Plankton who pursues science out of a desire for domination and control. She represents Fully Automated Luxury Communism, a utopia in which everyone has everything they need and are free to pursue their passions without the burden of work.

Finally, we have Mrs. Puff. Mrs. Puff was a hard one, but I think she represents the failure and uselessness of modern education. She continually attempts to teach Spongebob a useless skill (he walks to work, he doesn't need to drive) for a pathetic trinket of authority (his driver's license, whose possibility of attainment he worships).