As SpongeBob Turns 20, Meet the Faces Behind the Characters

As the sponge himself, SpongeBob SquarePants. Kenny has a staggering 478 IMDb credits to his name, most all of them voice acting.

As Patrick Star. He also played Marshall's beloved dad on How I Met Your Mother.

As Squidward. Among his past work: Lilo & Stitch and Toy Story 2.

As Mr. Krabs. Most recently, he stepped in front of the camera on Billions and The Goldbergs.

As Plankton. He often serves as a writer on the show, as well.

As Fish #1. He also does voicework on American Dad! and Mickey and the Roadster Racers.

As Sandy Cheeks. Jimmy Neutron is also her claim to fame.

As Lady Fish. She also gave voice to Lois Lane on Batman: The Brave and the Bold.

As Karen. She's also featured on American Dad! as well as Powerpuff Girls.

As Pearl Krabs. She voices Bonnie's mom in the Toy Story movies.

As Mrs. Puff. She played Pearl on Diff'rent Strokes and had guest parts on Glee and That's So Raven.