who are its characters?
SpongeBob SquarePants, snail Gary, Patrick Star, Mr.Krabs, to name some.
SpongeBob SquarePants
The series revolves around the title character and an ensemble cast of his aquatic friends. SpongeBob SquarePants is an energetic and optimistic sea sponge who lives in a submerged pineapple with his pet snail Gary, who meows like a cat. SpongeBob has a childlike enthusiasm for life, which carries over to his job as a fry cook at a fast food restaurant called the Krusty Krab. His greatest goal in life is to obtain a license to drive a boatmobile. His favorite pastimes include "jellyfishing", which involves catching jellyfish with a net in a manner similar to butterfly catching, and blowing soap bubbles into elaborate shapes.

Living two houses away from SpongeBob is his best friend Patrick Star, a dim-witted yet friendly pink starfish who resides under a rock. Despite his mental setbacks, Patrick sees himself as intelligent. Squidward Tentacles, SpongeBob's next-door neighbor and co-worker at the Krusty Krab, is an arrogant, ill-tempered octopus who lives in an Easter Island moai. 
when did spongebob start working at the krusty krab After he fulfils the task given by Mr. Krabs. what is referred as help wanted? It is the pilot episode of the American animated television series "SpongeBob SquarePants". when was it aired? May 1, 1999 who did its background score? Tiny Tim who is the creator of the mentioned series? Stephen Hillenburg
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SpongeBob SquarePants [SEP] Characters
The series revolves around the title character and an ensemble cast of his aquatic friends. SpongeBob SquarePants is an energetic and optimistic sea sponge who lives in a submerged pineapple with his pet snail Gary, who meows like a cat. SpongeBob has a childlike enthusiasm for life, which carries over to his job as a fry cook at a fast food restaurant called the Krusty Krab. His greatest goal in life is to obtain a license to drive a boatmobile. His favorite pastimes include "jellyfishing", which involves catching jellyfish with a net in a manner similar to butterfly catching, and blowing soap bubbles into elaborate shapes.