Squidward Quentin Tentacles (born April 15, 1977) is the tritagonist of The Life of SpongeBob SquarePants. He is a cephalopod. He is a neighbor of the title character and Patrick Star. He despises both of them, seeing them as endlessly annoying and childish. Squidward works as the cashier and waiter (sharing the latter role with SpongeBob) at the Krusty Krab. Squidward despises his job and wishes that he can get out of the restaurant for good, but fears that doing so will deprive him of his income and reduce him to poverty.
Squidward is mostly cynical, grumpy and rarely smiles, at least in the public. He despises both of his neighbors, SpongeBob SquarePants and Patrick Star, for what he sees as their annoying and childish behavior and does not relish the idea of working with SpongeBob at the Krusty Krab (SpongeBob and Patrick are oblivious to this and love having Squidward as their neighbor). Squidward hates working at the Krusty Krab and sees his boss, Mr. Krabs, as selfish and uncaring, even oppressive at times. He wishes that he can get out of the Krusty Krab, but fears that doing so will throw him into poverty.
Nevertheless, Squidward does have his kinder side. He is willing to warn and protect even those around him, even the people he normally despise, and does not let whatever feelings he has from making objective judgements. He is not beyond warning SpongeBob that his hands-off, ignorant management of the Krusty Krab will lead to the restaurant's collapse, as shown in "Our Temporary Manager, Mr. SquarePants!", and admits to him that he thinks he (SpongeBob) is the "best cook in the world". This leads to SpongeBob voluntary relinquishing control over the restaurant, much to Squidward's relief.
As shown by the formal, written statement by Mr. Krabs designating SpongeBob as Temporary Manager of the Krusty Krab in "Our Temporary Manager, Mr. SquarePants!", in which he lists the full names, dates of birth, and lengths of tenure in the restaurant of his employees (along with the full address of the restaurant and the powers and responsibilities that fall to the Temporary Manager), Squidward Quentin Tentacles was born on April 15, 1977. He has worked at the Krusty Krab since 1997.
Squidward lives in Bikini Bottom. He has two neighbors, SpongeBob and Patrick Star, who is also SpongeBob's best friend. Squidward despises both of them for most of the time, because of what he sees as their annoying and childish behavior.