Okay, Rakesh,here are the pictures of the characters from Spongebob Squarepants as you posted previously.

Here is Patrick Star

And this is our hero, Spongebob Squarepants

And this is Spongebob's competitor, Squidward

And oops.. I am going to add some other characters :

Start with Mr Krabs.

Mr. Krabs is SpongeBob's boss and the owner of The Krusty Krab. Making money is what it's all about for Mr. Krabs, and he can usually be found in his office counting his cash and adding up the day's receipts. Although SpongeBob gets on his nerves, Mr. Krabs likes that he's willing to work long hours for little pay, and sometimes acts like his mentor. Mr. Krabs hates his fast food rival Plankton, the owner of The Chum Bucket, but not as much as Plankton hates him. The only thing that has more control over Mr. Krabs than money is his teenage daughter, Pearl.

Then,Sandycheeks

Sandy Cheeks is a sea dome-dwelling squirrel who lives for action and adventure. Having attempted just about every death-defying stunt under the ocean, she's accepted the ultimate challenge: Living underneath it in an oxygen-filled dome. Sandy is Bikini Bottom's only resident rodent, and SpongeBob's karate sparring partner. For Sandy, SpongeBob is the sea bottom's best stunt buddy, and when they get together, crash helmets and parachutes are usually required.

And now, Plankton

Mr. Krabs's arch-rival Plankton is a little guy with a major attitude. The owner of a rival restaurant The Chum Bucket, Plankton's always cooking up dastardly schemes to steal the Krusty Krab's customers. If he succeeded, they'd be the first customers he ever had!

The last, Gary

SpongeBob's loyal pet may not move so fast. He may leave a trail of slime everywhere he goes. He may not be so good at catching frisbees or fetching slippers. But Gary's the best darn pet an invertebrate sea sponge with square pants could possibly ask for, and that's all that matters.

Meow.